glass at a glance: canon 18x50 is
if you don’t mind 14mm of usable eye relief, a 2.7mm exit pupil, and holding 2.6 lbs (1200 g) to your eyes for extended periods you’ll love this binocular. i did buy a pair of 56mm clip-on protective objective caps as there are (amazingly) none included with this bino.
beyond the above possible caveats, all other aspects of this instrument exude quality.
top marks for coatings, flatness of field, edge sharpness, mechanics, and minimal false color. an ample 60 deg afov also goes in the plus column, along with (of course) the image stabilization capability.
i still prefer the extra fov, larger exit pupil, longer eye relief, and more forgiving eye placement of my $200 orion 15x63, but if image stabilization is worth the extra $1000 you’ll be very pleased.
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a mini-orion
there's an often seen but rarely noticed asterism in cygnus found just south of what would be florida along the north american nebula (caldwell 20/ngc 7000). the seven suns bear a slighlty warped but recognizable resemblance to its namesake's main constellation stars.
radec 2056+4335 psa 62 size 30' mag 7
fmi/finder charts: leiter 9/little orion
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battle of the pseudo-sciences
that's twice now that i've unknowingly run into a hardcore tarot card reader that scoffed at astrology. the different 'branches' of astrology all believe theirs is the only true path as well (alot like hardcore sct, dob, and frac owners, actually). and almost all mystic pursuits dismiss the fleurths (flat-earthers). that's more understandable. if earth was flat, cats would've pushed everything off of it by now.
but none of the above, even the fleurths, believe in the most far-fetched of the pseudo-sciences- "meteorology". the money wasted on the long-term weather psychics' predictions alone would be better off feeding every third-world country. in what other career can you screw-up 99% of the time and still keep your job?
(also see: saber's reform of met-error-ology)
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carly simon's eclipse
in her 1973 hit song 'you're so vain' she mentions the vain guy taking his leer jet to nova scotia to see the total eclipse of the sun. that 1972 eclipse was clouded-out from that location. so either carly was kind enough not to rub it in, or the vain guy flew above the clouds to see it.
just something to think about the next time anyone hears that song.
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my astronomical horoscope
(quad cities reader, august 2024)
"scorpio: october 23-november 21
scorpio-born gary hug was educated as a machinist and food scientist, but for many years he worked primarily as an amateur astronomer. using a 7-foot telescope that he built in the backyard of his home, he has discovered a comet and 300 asteroids, including two that may come hazardously close to earth. extolling the joys of being an amateur, he says he enjoys 'a sense of freedom that you don't have when you're a professional.'
in the coming weeks, scorpio, i encourage you to explore and experiment with the joys of tasks done out of joy rather than duty. identify the work and play that feel liberating and indulge in them lavishly."
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lucky ned pepper: steadiest hands in the west
we've all laughed or cringed at inaccurate or impossible telescope/binocular use in movies or tv. the near-omnipresent twin bino fieldstops, ellie watching a meteor shower thru a small mounted scope in contact, costner's first reaction looking thru azeem's makeshift pre-galilean scope in robin hood, ad nauseum.
for me, the most impressive has been lucky ned's handheld sharpshooting talent in the 2010 remake of true grit. at one point he casually brings a thin 16" spyglass to his eye- with one hand- and from at least a half-mile immediately sights rooster cogburn perfectly centered and focused with a steadiness that would
embarrass the rock of gibraltor. ned later twirls the slim tube like a drumstick as an encore.
p.s., two more similar nok-fails within 8 hours of the above post.
the rifleman, s1e26: mark brings a binocular to his eyes objectives-first. rather than reshoot the scene, an i-dream-of-jeannie-blink-esque edit magically flips the nok 180deg in his hands. pretty impressive adaptive optics for the old west.
madison's first binocular experience in zombieland: double tap is only forgivable cuz she's just so cute.
by the way, let me know if there's a central online vault for portrayed optics fails. i've got plenty more.
facebook.com/saberdrumz
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c20: north america nebula naked-eye
despite the 4th mag brightness optimism, caldwell 20 (aka n.g.c. #7000)
requires both very transparent and steady dark skies to reveal itself at 1x.
my first naked-eye view of the fuzzy continent was one of many 'double-take' moments from repeated observing; like the first time seeing obvious red in m42, or noticing your shadow being cast by venus' light alone.
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mercury is the closest planet to earth
roughly 46% of the time. venus 37%. mars 17%.
mercury is actually the overall closest to all other solar system planets.
most people have been indoctrinated by all those tidy inferior-conjunctions-in-a-row school posters. but that's only one aspect of many.
this information will befuddle or bewilder most civilians.
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my first saturn-versary
at the time of this post, saturn is back among the stars where i first laid glass on it as a serious observer 29 1/2 years ago- a much more visceral, celebratory milestone for me than the upcoming 30 years in by the calendar. i've felt the same pleasing deja-vu at 12 and 24 years with jupiter back in its 'original' starfield, and with other rare repeated sky events as well.
if you've had similar experiences, let's just say you've come to the right blog.
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doublestars: a few laps with porrima (video):
https://youtu.be/obgptdE5xhk
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that time i broke an a.l. obs program rule
it's generally frowned upon to log targets for multiple programs at once. but hey, how many chances does a yankee get to visit the amazing skies below the equator?
link: southern sky program mash-up
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girls gone wild in taurus
every 8 years orbital resonance allows us to observe venus pass through the fabulous open cluster messier 45 (aka the pleiades), the brightest of these stars commonly known as the seven sisters. but what most astronomy books exclude is what a bad influence the promiscuous vixen venus has on the prim and proper pleiad ladies. april 2020’s slumber party started off innocently enough, with venus tugging ally’s braid but soon devolved into pillow fights, jello shots, and trashing hotel rooms, along with smoking cigars and gambling til sunrise. as usual, poor papa atlas ends up spending the next day bailing his daughters out of jail and nursing hangovers, as venus happily prances along in search of others to partake in another night of hedonism.
just some fractured mythology to keep in mind as we view m45 until april 4th 2028, when visiting venus again turns the stately cluster into a den of iniquities.
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toes fetish
that's transits, occultations, eclipses, and shadows. fans can enjoy some quick and dirty astro simulations of these events viewed from other locations in the solar system at http://www.youtube.com/@saberzastrovidz
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snl skit: more caldwell! (er, cowbell)
nasa/hubble's 2020 canonization of c-numbers as primary identifiers was certainly cause for celebration among the growing army of gen c-ers.
all that's left is to update the starmap ids in the next printings (or epoch). to this end i've started an email writing campaign to all the publishers, and encourage other caldwell fans to do the same.
to get a head start i've also bought 100 copies of both SA2000 and the Pocket Sky Atlas, whited-out the old ngcs, replaced them with the proper caldwell ids, and am reselling them as used at a discount.
let me know if you run across any saberized collector's editions.
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pass them a napkin
sir patrick was obviously a humble deepsky expert as well as a moon guy. consider that he created the caldwell catalogue on a napkin at dinner one night- from memory. 109 objects, constellations, mags, radecs, etc. ask one of the wannabe forum fuzzy 'experts' to attempt the same and all you'll get are sour grapes and tears.
sir patrick wasn't just a dso enthusiast, he was a freaking ninja.
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that's transits, occultations, eclipses, and shadows. fans can enjoy some quick and dirty astro simulations of these events viewed from other locations in the solar system at http://www.youtube.com/@saberzastrovidz
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snl skit: more caldwell! (er, cowbell)
nasa/hubble's 2020 canonization of c-numbers as primary identifiers was certainly cause for celebration among the growing army of gen c-ers.
all that's left is to update the starmap ids in the next printings (or epoch). to this end i've started an email writing campaign to all the publishers, and encourage other caldwell fans to do the same.
to get a head start i've also bought 100 copies of both SA2000 and the Pocket Sky Atlas, whited-out the old ngcs, replaced them with the proper caldwell ids, and am reselling them as used at a discount.
let me know if you run across any saberized collector's editions.
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pass them a napkin
sir patrick was obviously a humble deepsky expert as well as a moon guy. consider that he created the caldwell catalogue on a napkin at dinner one night- from memory. 109 objects, constellations, mags, radecs, etc. ask one of the wannabe forum fuzzy 'experts' to attempt the same and all you'll get are sour grapes and tears.
sir patrick wasn't just a dso enthusiast, he was a freaking ninja.
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it ain't easy bein' green
especially if you’re a star. there’s just no wavelength on the stellar evolution spectra for them. still, many doublestar components do their best to trick our eyes, mostly by complementary color contrast, into seeing a greenish illusion.
while some observers are immune to this, i tend to see more green than usually reported, whether it’s nebulae, uranus, or doublestars. i know it’s not real, but it sure makes the sky more interesting (and colorful).
you can test your susceptibility to this celestial magic on the popular doubles candidates listed below. target altitude, seeing conditions, and light pollution may all affect perceived colors as well. (plot spoiler: there are no purple stars either. same proximity illusion.)
peace, stephen
91 aqr / hip 114885 mag: 4.2 two orange stars with a 'greenish' star nearby.
lambda ari / hip 9153 mag: 4.8 yellow & green
gamma del / hip 102531 mag: 5.1yellow-gold & white-green
gamma leporis / hip 27072 mag: 3.6 gold & green
stf 2841 / hip 108119 mag: 6.3 yellow-orange & green
51 psc / hip 2548 mag: 5.7 the secondary star looks greenish.
antares / alpha sco (yellow & blue) mag: 0.6 to 1.6 secondary can also look greenish
59 ser / hip 90441 mag: 5.2 white/yellow & green
95 her / hip 88267 mag: 5.1 may (also) look green
izar /epsilon boo / mag: 2.3 sometimes described as golden yellow and greenish
beta lib / zubeneschmali mag: 2.6 brightest of libra and distinct green.
sigma cas / hip 118243 mag: 5.0 'green-hued' primary
messier marathons are about to get a lot easier
well, eventually anyway. we're currently near the farthest northern point of earth's circle of precession.
in about 14,000 years vega will be our brightest 'north star'. for an observer at 45° n, polaris will scrape the horizon and all of the southern sky will be available- like observing from the equator now.
the nights that a marathon is not possible will be the minority, and our lucky descendants will also enjoy access to the entire caldwell catalogue treasures.
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skytimes astro-interview (part one)
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public outreach q&a: how did our circumpolar bears’ tails get so long?
fractured mythology tells us the two ursas were caught trying to steal pic-uh-nic baskets during one of king cepheus’ outdoor luncheon events. as punishment, they would spend eternity in the sky being chased and tormented by the evil dragon draco. cepheus grabbed the bears by their formerly stubby tails, and his spinning wind-up before launching them was so powerful that it stretched the appendages to their current unusually long length.
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beetlejuice behaving badly
as of mid-feb 2020, i give bellatrix at least a couple tenths of magnitude over betelgeuse.
in the same binocular field bella is slightly more obvious at dusk, and defocusing the pair in a dark sky reveals the difference as well.
also, having recovered from my initial shock at the red-orange giant’s dramatic dimming,
i now just want it to finally stop teasing us and explode in a historic blaze of glory.
and poor rigel. the jan brady of orion. betelgeuse gets uglied-up by a football to the face- but steals even more attention. (marsha, marsha, marsha!)
and poor rigel. the jan brady of orion. betelgeuse gets uglied-up by a football to the face- but steals even more attention. (marsha, marsha, marsha!)
enjoying the show,
stephen
[betelgeuse supernova simulation: https://youtu.be/hJPVuSNFxlY ]
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 | |||||||||
C14 (ngc869/884) in Perseus *courtesy of SDSS* [stephen saber/2004-2025/all contents within are free use and may be reprinted with author/website acknowledgement] saber does the stars (vol. 1) http://saberdoesthestars.wordpress.com quick and dirty pov astro-sims http://www.youtube.com/@saberzastrovidz observing list: concordiem borealis stephen saber's concordiem borealis saberscorpx photo gallery https://www.cloudynights.com/saberscorpx-photos contact via fb messenger http://www.facebook.com/saberdrumz saber does the stars vol 1&2 free flipbook https://online.anyflip.com/aqzgf/vzin/mobile/index.html ***** the astronaut (2025): scope abuse kate mara leaves her new gifted telescope out on the deck in torrential rainstorms and to suffer attacks by swarms of killer cicadas. such grievous neglect of optics deserves a big fat plot spoiler: kate forgets she's a stranded camoflaged alien until her real mom headbutts her back into reality and takes her back home with her loving alien family. ***** | the ghost moons of jupiter (halloween 2025) video at: https://youtu.be/vAdMu6TzT3M combining the quadrature sol and earth viewing angles creates an eerie and oblique projection of jove’s shadow, causing its moons to vanish and reappear at unusually great distances from the planet. (i almost resisted revealing this particular anomaly to freak-out unsuspecting beginners.) | the linked example shows jupiter’s long off-center shadow temporarily kidnapping all four galileans in just over 12 hours. (io emerges from shadow :03 callisto eclipsed :09 — :12 ganymede eclipsed :21 — :24 europa emerges :23) | These series of events continued for several weeks as the sun-earth-jupiter alignments progressed. ***** |
messier-caldwell (mescal) marathon
for several years i've been adding all the available caldwells in the constellations i'm passing through to my standard messier sequence. there's just too many great treasures within a stone's throw to pass up. many can be hunted during the halftime break or while gambling on m30 as well:
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23238 ocasio-cortez
i had a crush on aoc already, but finding out that she also has an asteroid named for her somehow has me even more smitten. i'm not sure why. i don't agree with her views. the rock's name was probably just a diversity gift (she got it for placing 2nd in a high school science fair). still, i feel an increased bond with her because of it. weird, huh? anyway, occasional cortex's rock is 1.5 miles in diameter and orbits in the main asteroid belt between mars and jupiter.
* * * * *
public forgiveness (cont.)
my friend cozi explains floaters:
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galaxy-class drums
now and then the stars align, and my drumming life crosses paths with my passion for the night sky. saber's beads was particularly apt, as the tips of drumsticks are also called beads. another epiphany led me to start adapting cymbal stands as additional binocular mounts when needed. and recently i stumbled upon a variety of kick drum heads featuring galaxies, planets, nebulae, et al. check out visionarydrum.com for my latest kit accoutrements.
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caldwells 109- haters 0
it's gotta be tough being an anti-u.k., anti-nasa caldwell hater these days. for the catalogues 25th anniversary, nasa and hubble not only did a major photoshoot of sir patrick's 109 deepsky gems, but have also endorsed the caldwell numbers as their primary ids.
would this finally silence the few remaining never-moore-ers and their sad hubris of the defeated?
i sure hope not. the controversy and free publicity has been so instrumental in the catalogue's success that there's no telling how popular it can still become...
the seenines
(in the not too distant future...)
hyperlight communication has given us contact with the people from an exo-planet near c9, the cave nebula. turns out they'd been evesdropping on us and become so enamored with the controversy and that sir patrick had picked their hometown out of billions that the species unanimously voted to rename themselves the 'seenines'.
upon further contact, interstellar war was narrowly averted when a small generationally indoctrinated cult of caldwell deniers- refusing to acknowledge the seenines identity- were instead captured and sentenced to dress as monks and alternate chanting c-numbers with smacking stone tablets against their foreheads.
(yes, the seenines also became big monty python fans.)
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ever play guess the radec?
with 2 midsized airports to my north and south, and o'hare a couple hours west, it’s rare to see a sky without a contrail. multiple crossing contrails involuntarily remind me of the radec grid, and i’m compelled to start assigning their estimated hours and declinations.
please tell me i’m not the only one.
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earth/space porn on chromecast
the beautiful, updating astro-backdrop/slideshow is another nice benefit to blowing-up your mobile’s display onto a big screen. (firestick, too.)
highly recommended.
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waning interest: hunting the oldest crescent moon
if you're into chasing thin crescents and not taking advantage of the waning slivers, you're missing half of the challenge and rewards. dawn crescents don't get nearly the attention of their dusk counterparts. there is no cultural significance and most of the world is still asleep. this is unfortunate as oldest crescents usually enjoy cleaner, steadier air, and observers already have a jump on dark adaptation. catching the thin horn of luna's limb emerging from the horizon can also be an addictive twist to the dusk event. the still of the night also lends itself to creating a more peaceful and contemplative experience.
double your pleasure, practice, and conquests- support your oldest crescents.
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"what does it take to see saturn's rings? i've got 4k to spend."
4k will certainly buy some jaw-dropping views of the rings. fortunately, run-of-the-mill amazing rings are available for alot less. near opposition, even a 25x binocular will show a tiny but crisp disc/ring system. it takes about 30x when saturn's out roving around the quadratures. there are even very sporadic reports of naked eye detections of the disc 'bulges'. as for myself, there were several nights surrounding the last ring plane crossing that i was able to detect the ring orientation unaided, as the rings appeared more like hands of a clock than just big ears. but if i had that much to spend on a scope right now i'd get a 9.25hd edge and load it for bear. by the way, it also does a wonderful job on thousands of other night sky treasures. (but mostly on saturn's rings.)
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those 5th galilean moons
jupiter occasionally tolerates a paparazzi fieldstar posing as a galilean to snap some pics (after all, many have light that has traveled hundreds of years for the encounter).
but mars is welcomed as family, with ganymede even timing a special shadow transit for the red planet's visit: https://youtu.be/jDL_B5MPQ2I
or, those 5th galilean moons
many are ecliptic gladiators, chomping at the bit to challenge the jovian gauntlet of head bouncers in an attempt to cross the system unscathed. 5.5 mag sigma aries pulled it off in august 2023. others are not so lucky: https://flic.kr/p/2oZhB8u
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beyond starhopping: sharpshooting
our scopes are shaped like grenade launchers and cannons. finders give us crosshairs and bull’s-eyes.
those of us who still enjoy the theme and thrill of the hunt take pride in possessing a quick and accurate target acquisition. so i view starhopping as an initial reconnoiter, not a continuous requirement.
sharpshooters practice what has also been referred to as ‘spatial acuity’. basically, this is memorizing simple asterisms formed by nearby visible stars and a finder’s red dot (or other) reticle pattern.
many of us reflexively form invisible asterisms on a regular basis. in light-polluted skies we fill in the dimmer stars of the little dipper or corona borealis. sharpshooting is the dso equivalent.
an excellent exercise is to see the red dot as the target itself. after completing an observation take another look thru the finder with both eyes open and imagine the red dot completing a simple local star pattern (a triangle, an ‘L’, etc.). return the scope or binoculars to a neutral start position and aim again to recenter the target solely as the completion of a stellar pattern.
using ones lowest power/widest field ep is recommended, as this allows a larger margin for error.
it won’t happen overnight, and some are tougher than others, but with repetition this logistic reinforcement will allow the observer to eventually memorize hundreds of otherwise invisible dso positions and skip the celestial pinball routine altogether.
building this personal go-to database of ‘lock and load’ targets is both a goal and reward of proficient starhopping.
the 110 messier objects are popular sharpshooting targets. becoming intimate with their positions is also essential for those wishing to test their prowess while running the m-cubed (messier marathon from memory).
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saturn's teasing tilt
it’s a pleasant fiction to imagine saturn’s beautiful rings coyly and seductively tilting toward and away from us, slightly by the month and dramatically over a decade. but earth is actually doing the unsung grunt work, carefully pacing itself to fall slightly farther behind saturn in its orbit over the course of each revolution. this allows us the amazing perspective of cycling ring aspects. sorry to dampen anyones fantasy. just something to contemplate at the eyepiece, and while watching the linked vidclip below.
in motion: saturn’s northern ring crossing (jan 2009-sep 2010) at
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stoking the embers
outer atmospheres of suns containing a majority of carbon rather than oxygen only allow the red spectrum of their light to reach our eyes.
the beauty of these aptly colored carbon stars has also stopped most of us in our tracks while panning thru the eyepiece.
specifically hunting and comparing these scattered blood diamonds is one of the more forgiving amateur pursuits, as less-than-perfect seeing and altitude often only accentuate their fiery presence.
the astronomical league offers a great program for those ready to start chasing these stellar gems. check it out at https://www.astroleague.org/content/carbon-star-observing-program
happy hunting!
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outreach: think accessibility
i'm not a recruiter. just offering to share the view.
unless they want to be recruited. then i feel like a drug dealer, as there's possible addiction and withdrawal involved.
in any case, the easier we make it look, the more people feel they can try it themselves.
i try to speak in layman's terms as much as possible, as if there's no new 'language' to learn. not all at once, anyway.
relate that any cloud-free sky will do, and that a modest scope, or even those binoculars in the closet are all they need. i have a couple of 8x40s that i pass around to supervised groups while they wait in line.
i usually do public outreach under some waxing moon phase and stick with whatever other naked-eye showpieces are available (except by request).
quality/wow factor over quantity. three or four bright targets per group or person is all you really need (i.e., always leave the crowd wanting more).
also, everyone is welcome, whether they want to become an astronomer or astrologer or join the x-files. (those who pathologically correct visitors on every scientific nuance cross the line into 'outpreach', and become the stereotype droll know-it-alls.) i'm not there to criticize how anyone enjoys the stars. in fact, i'm intrigued by the different attractions and curiosities the night sky evokes. the cream will rise to the top without any bias from the host.
beyond that, it's just about making the experience more interesting than academic and enjoying the reactions when that tiny spot of light hits their pupil.
i offer cellphone snaps at the ep for souveniers, and of course have plenty of old astromags/catalogs, dark sky brochures, and local club info available.
most importantly- and this cannot be overstated- use a 5mw laser pointer to point stuff out. people (kids especially) are entranced by it. many would stay for the light show alone.
it is, however, at your discretion whether or not to make the light saber sound while using it.
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butch and sundance
i remember only two of us from the club showing up to handle 250 scouts on a sugar-high stampeding in the dark
toward the observing field at once. the ground and scopes were shaking.
quite a daunting experience until the dust settled and the panting troop leaders caught up to them.
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caldwell 76: under-appreciated?
At -42° dec, C76 (I call it the 'less-southern jewel box') is just being shy.
If the beautiful bright cluster was circumpolar it would probably die of embarrassment from all the attention.
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30x80 barska x-trail revisited
i watched mare crisium spit out aldeberan after an occultation a few nights ago using the barska 30s. very enjoyable. amazing lunar terminator detail, as always.
everything about it from my initial review years ago still holds true. still aligned, still mechanically sound, eye relief still useable but wanting.
what i did want to ammend is that the fully-coated barska's color correction may not necessarily be better than that of the fmc 30x orion megaview- but perhaps the brighter image/decreased contrast may simply render it less noticible. this also implies that, in some cases, vivid CA may be a result of better AR coatings- and that those highly offended by false color might be better appeased by fully-coated or multi-coated models.
just an intuitive thought, but i'll let you be the judge.
the 30s were not my first experience with vivid vs 'bleached' CA. while comparing four 8x40s, the fully-coated model also outperformed the other 3 fmc noks on (noticible) CA.
i also still employ and recommend my hi-mag training routine for steadier handheld views thru lower-power binos, whether it's a 30x warm-up before dropping to 15x, or 15x prior to 8-10x sessions.
anyway, the barska 30x is still providing bang long after the buck. versus my 25x100, the barska not only has the adler index (and easily observed) edge in power, but often gets more use due to its smaller grab-n-go size and light weight.
and the 30x stereo views of saturn and luna alone will always be worth the bargain price.
peace, stephen.
saber does the stars at:
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forced statutory outreach:
the night i crashed the science fair
my brother's kid had brought home a flyer from school announcing an upcoming science fair and the evening's program; simple demonstrations of basic physics, geology, chemistry, etc. but conspicuous by its absence was any mention of space, astronomy, or even a lousy solar system diorama.
the final rub was that this was taking place at, not just any grade school, but my own hometown childhood almamater- so now it was personal.
politely, but thru gritted teeth, i called the school ready to verbally pound some sense into this blasphemous principal's head...
okay, that's enough dramatics.
just wanted to convey my initial reaction. i was even suprised at how betrayed i felt.
anyway, a semblence of sanity prevailed allowing me to see this as a sad but excellent outreach opportunity.
sure it was december and cold for public outdoor observing, but not even an indoor table display or a few hubble pics?
in the end they were thrilled to have me bring a scope, some noks, and a variety of outreach material.
my 18" round laminated moon pic was hung at the far end of the gym above the bleachers for observing practice.
but my glp easily stole the show, giving me a big audience of parents and children on which to also impress the dangers and legal ramifications of improper laser use.
it was a fun evening and i was invited back in the spring for a full-blown outdoor event.
being back at my old grade school was an experience in itself. in 6th grade our class held the annual folk festival in the same gym. my group's exhibit- brazil- had also been the most popular, especially with the adults.
ours was the only country serving coffee.
peace, stephen
p.s., speaking of glps, it's extremely difficult to preach responsible laser use when you have the overpowering urge to
make the light saber sound while demonstrating them.
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do u observe alone at remote locations?
from a preference standpoint: sure. whenever i'm not sharing views with the public and have time for the drive.
alone with the stars it's a much more intense bonding experience. like it's all on display just for me.
from a danger/life-threatening standpoint: doesn't bother me a bit. there are worse ways to go than with saturn or a favorite dso in the eyepiece.
in fact, it would be my third preferred 'found dead while' scenario. the second would be while behind the drums.
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i was a teenage exit pupil abuser
9x63, 10x70, 11x80. there was a time i couldn't get enough wasted light. spraying it like a firehose from the eyepieces of my binoculars during nights on end of gluttony and laughter. after all, i had convinced myself, there was a free and neverending supply. i crashed numerous star parties- aiming the back of my noks at nearby dso observers, and giggling as they flinched from my venomous stray light intruding on their precious night vision. i scoffed criticisms from my elders that there were children starving for light in cloud-covered cambodia. cursing disapproval, several others would often swarm behind me to catch and splash the spewing overflow of photons in their eyes that would otherwise bounce without purpose off the grass and onlooking sheep behind me.
but exit pupil laws were becoming increasingly strict, and my freewheeling cowboy lifestyle finally caught up with me. at one event i was hauled off the field by the national ExP guard and brought before a judge. sentenced to 5 years of hard labor, poor transparency, and a harshly restricted 30x50, i spent many tearful nights repenting the tomfoolery of my youth.
[epilogue: bino exit pupil is often overrated. like aperture, more is always preferable to not having enough. eye placement is less critical with large ExPs as well. iow, don't let an oversized ExP override your enjoyment of the night sky.]
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zerbatory blues
after making the 45 minute drive to our blue zone observatory, confining myself to its rectangular slit of heaven would be torture. i spend a good deal of time set up in the surrounding field and rolling around in the grass like a kid in a candy store, too.
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Not Another Moon Illusion
Depending on your level of intimacy, most people have experienced up to 3 moon illusions; the size illusion (moon appears larger near the horizon), the depth illusion (moon craters appear as domes aka the 'convex/concave con'), and the terminator illusion (illuminated portion of moon appears offset to direct sun rays).
Another that's followed me thru the years of lunar observing is not so much an illusion as a temporal inconvenience.
The 1.3 seconds it takes for the moon's reflected light to reach us translates to a
time-delayed terminator. Whether by inches or yards (cms or meters), the terminator has always advanced farther than what we're seeing from earth. So, while we're slightly ripped-off when the moon is waxing, the waning phases constantly allow us to see features that are actually already in darkness.
Ashen light (earthshine) takes an additional bounce to reach us, so we're actually seeing that area as it appeared 2.6 seconds ago.
The time machine increases dramatically when we view the more distant planets and stars. Saturn's illuminated image, for example, is always roughly 90 minutes old as viewed from earth.
Good stuff to consider next time you see our closest neighbors.
*****
http://astro.ukho.gov.uk/moonwatch/nextnewmoon.html
*****
In Praise Of Shallow Ecliptics
Flat ecliptics are no fun for planet viewing or young crescent moon sightings, and often means it's pretty cold outside. But it does give me a better sense of orientation with the Solar system.
In a world where 'north' is usually associated with 'up', it just feels more natural to be looking directly across the planets' orbits with my head and feet more aligned to Sol's north and south poles.
Near the other extreme, viewing a perpendicular ecliptic means I'm standing on the Earth's side and should be falling off the limb and into space.
It's a very Earth-centric bias and one I've been reluctant to share out of shame.
For those who have not experienced this I should have warned you ahead of time not to read this as it may trigger unwarranted vertigo and uneasiness during future obs sessions. My bad.
I bagged the Caldwells as an elective project en route to the A.L. Master Observer's award and found them to be a worthy and, in a few cases, challenging DSO refresher course. By request, the following is a jump-start for those in pursuit of Sir Patrick's favorite 109 non-Messier treasures. His concept was a forefather of modern post-Messier collections which has also inspired, often by its notoriety, a slew of the individual lists we see today. For the intermediate observer, this is a very nice warm-up for the Herschel 400 as most of the northern Caldwells also appear in that list. Only 70 targets are required to receive this award, making the program available to observers in either hemisphere (but don't let that stop you from traveling to enjoy the rest). The targets being numbered by declination also gives a much more intuitive idea as to their local altitude and availability. Prefacing the Caldwell catalogue designations below are the host constellation, its mid-point midnight culmination date, and respective Pocket Sky Atlas chart(s). Multiple targets within a constellation are ordered in suggested search sequences. Along with the object type, magnitude, and radec, an additional identifier is included for those using maps not updated with this iconic deepsky database's id.
cma / jan02 / psa27
C64 oc 4.1 0719-2457 (ngc2362)
C58 oc 7.2 0718-1537 (ngc2360)
gem / jan05 / psa25
C39 pn 9.9 0729+2055 (ngc2392)
mon / jan05 / psa25, 26
C50 oc 4.8 0632+0452 (ngc2244)
C49 bn -- 0632+0503 (ngc2237-9)
C46 bn 10.0 0639+0844 (ngc2261)
C54 oc 7.6 0800-1047 (ngc2506)
pup / jan08 / psa28
C71 oc 5.8 0752-3833 (ngc2477)
lyn / jan19 / psa23
C25 gc 10.4 0738+3853 (ngc2419)
cnc / jan30 / psa24
C48 gx 10.3 0910+0702 (ngc2775)
car / jan31 / psa39, 38
C96 oc 3.8 0758-6052 (ngc2516)
C90 pn 9.7 0921-5819 (ngc2867)
C92 bn 6.2 1044-5952 (ngc3372)
C102 oc 1.9 1043-6424 (ic2602)
C91 oc 3.0 1106-5840 (ngc3532)
vel / feb13 / psa39
C85 oc 2.5 0840-5304 (ic2391)
C79 gc 6.7 1018-4625 (ngc3201)
C74 pn 8.2 1008-4026 (ngc3132)
sex / feb22 / psa37
C53 gx 9.1 1005-0743 (ngc3115)
cha / mar01 / psa30
C109 pn -- 1010-8052 (ngc3195)
leo / mar01 / psa34
C40 gx 10.9 1120+1821 (ngc3626)
hya / mar15 / psa36, 46
C59 pn 8.6 1025-1838 (ngc3242)
C66 gc 10.2 1440-2632 (ngc5694)
cru / mar28 / psa49
C99 dn -- 1253-6300 (coalsack)
C98 oc 6.9 1242-6258 (ngc4609)
C94 oc 4.2 1254-6020 (ngc4755)
cen / mar30 / psa49, 48
C100 oc 4.5 1137-6302 (ic2944)
C97 oc 5.3 1136-6137 (ngc3766)
C80 gc 3.6 1327-4729 (ngc5139)
C83 gx 9.5 1306-4928 (ngc4945)
C77 gx 7.0 1326-4301 (ngc5128)
C84 gc 7.6 1346-5122 (ngc5286)
mus / mar30 / psa50
C108 gc 7.8 1226-7240 (ngc4372)
C105 gc 7.3 1300-7053 (ngc4833)
com / apr02 / psa45
C36 gx 9.8 1236+2758 (ngc4559)
C38 gx 9.6 1236+2559 (ngc4565)
C35 gx 11.4 1300+2759 (ngc4889)
cvn / apr07 / psa43
C26 gx 10.6 1218+3749 (ngc4244)
C32 gx 9.3 1242+3232 (ngc4631)
C29 gx 9.8 1311+3703 (ngc5005)
C21 gx 9.4 1228+4406 (ngc4449)
vir / apr11 / psa45
C52 gx 9.3 1249-0548 (ngc4697)
cir / apr30 / psa48
C88 oc 7.9 1506-5536 (ngc5823)
boo / may02 / psa44
C45 gx 10.2 1338+0853 (ngc5248)
nor / may19 / psa58
C89 oc 5.4 1619-5754 (ngc6087)
aps / may21 / psa60
C107 gc 9.3 1626-7212 (ngc6101)
tra / may23 / psa60
C95 oc 5.1 1604-6030 (ngc6025)
dra / may24 / psa31, 51
C3 gx 9.7 1217+6928 (ngc4236)
C6 pn 8.8 1759+6638 (ngc6543)
crv / may28 / psa36
C60 gx 11.3 1202-1852 (ngc4038)
C61 gx 13.0 1202-1853 (ngc4039)
sco / jun03 / psa58
C76 oc 2.6 1654-4148 (ngc6231)
C75 oc 5.8 1626-4040 (ngc6124)
C69 pn 12.8 1714-3706 (ngc6302)
ara / jun10 / psa58
C82 oc 5.2 1641-4846 (ngc6193)
C86 gc 5.6 1741-5340 (ngc6397)
C81 gc 8.1 1726-4825 (ngc6352)
cra / jun30 / psa69
C78 gc 6.6 1808-4342 (ngc6541)
C68 bn 9.7 1902-3657 (ngc6729)
sgr / jul07 / psa66
C57 gx 9.3 1945-1448 (ngc6822)
pav / jul15 / psa70
C93 gc 5.4 1911-5959 (ngc6752)
C101 gx 9.0 1910-6351 (ngc6744)
vul / jul25 / psa62
C37 oc 5.7 2012+2629 (ngc6885)
cyg / jul30 / psa62
C15 pn 9.8 1945+5031 (ngc6826)
C27 bn 7.5 2012+3821 (ngc6888)
C20 bn 6.0 2059+4420 (ngc7000)
C33 sn -- 2056+3143 (ngc6992/5)
C34 sn -- 2046+3043 (ngc6960)
C19 bn 10.0 2154+4716 (ic5146)
del / jul31 / psa64
C47 gc 8.9 2034+0724 (ngc6934)
C42 gc 10.6 2102+1611 (ngc7006)
aqr / aug25 / psa77, 76
C55 pn 8.3 2104-1122 (ngc7009)
C63 pn 6.5 2230-2048 (ngc7293)
lac / aug28 / psa73
C16 oc 6.4 2215+4953 (ngc7243)
peg / sep01 / psa74
C30 gx 9.5 2237+3425 (ngc7331)
C44 gx 11.0 2305+1219 (ngc7479)
C43 gx 10.5 0003+1609 (ngc7814)
tuc / sep17 / psa80
C106 gc 4.0 0024-7205 (ngc104)
C104 gc 6.6 0103-7051 (ngc362)
scl / sep26 / psa09
C72 gx 8.2 0015-3911 (ngc55)
C70 gx 8.1 0055-3741 (ngc300)
C65 gx 7.1 0048-2517 (ngc253)
cep / sep29 / psa73, 71
C12 gx 9.7 2035+6009 (ngc6946)
C4 bn 6.8 2102+6812 (ngc7023)
C9 bn 7.7 2259+6237 (sh2-155)
C2 pn 11.6 0013+7232 (ngc40)
C1 oc 8.1 0044+8520 (ngc188)
cas / oct09 / psa03, 01
C11 bn 7.0 2321+6112 (ngc7635)
C18 gx 9.2 0039+4820 (ngc185)
C17 gx 9.3 0033+4830 (ngc147)
C13 oc 6.4 0119+5820 (ngc457)
C10 oc 7.1 0146+6115 (ngc663)
C8 oc 9.5 0130+6318 (ngc559)
and / oct09 / psa03, 02
C22 pn 9.2 2326+4233 (ngc7662)
C28 oc 5.7 0158+3741 (ngc752)
C23 gx 9.9 0223+4221 (ngc891)
cet / oct15 / psa07
C62 gx 8.9 0047-2046 (ngc247)
C56 pn 8.0 0047-1153 (ngc246)
C51 gx 9.0 0105+0207 (ic1613)
for / nov02 / psa06
C67 gx 9.2 0246-3017 (ngc1097)
per / nov07 / psa02
C14 doc 4.3 0220+5708 (ngc869/884)
C24 gx 11.6 0320+4131 (ngc1275)
hor / nov10 / psa08
C87 gc 8.4 0312-5513 (ngc1261)
tau / nov30 / psa15
C41 oc 1.0 0427+1600 (mel25)
dor / dec17 / psa20, D
C103 bn 1.0 0539-6906 (ngc2070)
col / dec18 / psa18
C73 gc 7.3 0514-4003 (ngc1851)
aur / dec21 / psa12
C31 bn 6.0 0516+3416 (ic405)
cam / dec23 / psa11, 21
C5 gx 9.2 0347+6806 (ic342)
C7 gx 8.9 0737+6536 (ngc2403)
A.L. Caldwell Program Homepage
Caldwell Telrad Finder Charts
*****
Best Stargazing Locations (U.S.)
Many people are only a 15-20 minute drive away from the most stars they have
ever seen. Center your location on the linked map. Green areas are very good.
Blue is even better. Gray/Black is as good as it gets.
Plan a short road trip to these areas on a clear, moonless night and soak in the stars.
http://www.jshine.net/astronomy/dark_sky/
*****
Show Me My Star
If you'd like a free photo of that honorary star named for a friend or loved one just follow
these simple instructions.
http://www.pictureofmystar.blogspot.com/
New Moon: Extreme Crescent Visibility
Many people are only a 15-20 minute drive away from the most stars they have
ever seen. Center your location on the linked map. Green areas are very good.
Blue is even better. Gray/Black is as good as it gets.
Plan a short road trip to these areas on a clear, moonless night and soak in the stars.
http://www.jshine.net/astronomy/dark_sky/
*****
Show Me My Star
If you'd like a free photo of that honorary star named for a friend or loved one just follow
these simple instructions.
http://www.pictureofmystar.blogspot.com/
Best Colorful Double Stars
New Moon: Extreme Crescent Visibility
http://astro.ukho.gov.uk/moonwatch/nextnewmoon.html
(great site. email them to include last crescents before new moon, too!)
LROC Interactive Lunar Map
Total Solar Eclipse Seen From The Moon
Herschel 400 by Declination
Mostly for kicks, but a good reference for target availability and prioritization.
NGC Asterisms/Going Deep For Doubles: The NGC 140
Quick And Dirty Binocular Mag Comparisons
*****
Lightspeed Distance to the Planets
(from Earth, closest approach):
Mercury 5m10s
Venus 2m15s
Mars 4m20s
Jupiter 35m
Saturn 1h10m
Uranus 2h30m
Neptune 4h10m
(The current distance to Pluto is 4h39m)
*****
(from Earth, closest approach):
Mercury 5m10s
Venus 2m15s
Mars 4m20s
Jupiter 35m
Saturn 1h10m
Uranus 2h30m
Neptune 4h10m
(The current distance to Pluto is 4h39m)
*****
First Scope and Eyepieces
Buy the most aperture that is both affordable and portable. Portability should be easy enough that it never becomes an issue or reason not to setup or travel. Some don't think twice about regularly moving 100 lbs of equipment around while some think anything over 25 lbs is a chore. Vehicle accomodation is a consideration if one plans to travel. Which type of scope is more intuitive to use? Some people naturally take to the operation of a Dob over a Cat and vice-versa. The remaining design pros and cons tend to cancel each other out, and are usually not of crucial importance as both provide amazing views. Goto scopes also provide fine images, but a solid familiarity with the brightest stars and constellations is required to avoid alot of operational frustration.
For eyepiece needs, a 32mm Plossl, 24-8mm premium zoom, and shorty barlow will be more than enough to cover most useable powers in most scopes. At the same time I recommend collecting and enjoying as many Naglers as possible.
Buy the most aperture that is both affordable and portable. Portability should be easy enough that it never becomes an issue or reason not to setup or travel. Some don't think twice about regularly moving 100 lbs of equipment around while some think anything over 25 lbs is a chore. Vehicle accomodation is a consideration if one plans to travel. Which type of scope is more intuitive to use? Some people naturally take to the operation of a Dob over a Cat and vice-versa. The remaining design pros and cons tend to cancel each other out, and are usually not of crucial importance as both provide amazing views. Goto scopes also provide fine images, but a solid familiarity with the brightest stars and constellations is required to avoid alot of operational frustration.
For eyepiece needs, a 32mm Plossl, 24-8mm premium zoom, and shorty barlow will be more than enough to cover most useable powers in most scopes. At the same time I recommend collecting and enjoying as many Naglers as possible.
*****
A Mount By Any Other Name
For not being a binocular tripod fan, I sure have enough of them.
When I'm not beating on my drumkit the cymbal stands are all available for duty as sturdy
mounts for my noks. They've occasionally been used at outreach events for multiple viewers as well.
With the cymbal stand boom arms adjusted to the vertical many can extend up to 84". Most are compatible with bino adapters, and the more robust models can easily handle my 100mm guns.
An alternate mounting choice that often gets overlooked, some music stores carry used boom stands for less than $50.
A Mount By Any Other Name
For not being a binocular tripod fan, I sure have enough of them.
When I'm not beating on my drumkit the cymbal stands are all available for duty as sturdy
mounts for my noks. They've occasionally been used at outreach events for multiple viewers as well.
With the cymbal stand boom arms adjusted to the vertical many can extend up to 84". Most are compatible with bino adapters, and the more robust models can easily handle my 100mm guns.
An alternate mounting choice that often gets overlooked, some music stores carry used boom stands for less than $50.
*****
In Praise Of Shallow Ecliptics
Flat ecliptics are no fun for planet viewing or young crescent moon sightings, and often means it's pretty cold outside. But it does give me a better sense of orientation with the Solar system.
In a world where 'north' is usually associated with 'up', it just feels more natural to be looking directly across the planets' orbits with my head and feet more aligned to Sol's north and south poles.
Near the other extreme, viewing a perpendicular ecliptic means I'm standing on the Earth's side and should be falling off the limb and into space.
It's a very Earth-centric bias and one I've been reluctant to share out of shame.
For those who have not experienced this I should have warned you ahead of time not to read this as it may trigger unwarranted vertigo and uneasiness during future obs sessions. My bad.
*****
Caldwell Fever
Stephen Saber |
| C76 (ngc6231) in Scorpius courtesy of SDSS |
cma / jan02 / psa27
C64 oc 4.1 0719-2457 (ngc2362)
C58 oc 7.2 0718-1537 (ngc2360)
gem / jan05 / psa25
C39 pn 9.9 0729+2055 (ngc2392)
mon / jan05 / psa25, 26
C50 oc 4.8 0632+0452 (ngc2244)
C49 bn -- 0632+0503 (ngc2237-9)
C46 bn 10.0 0639+0844 (ngc2261)
C54 oc 7.6 0800-1047 (ngc2506)
pup / jan08 / psa28
C71 oc 5.8 0752-3833 (ngc2477)
lyn / jan19 / psa23
C25 gc 10.4 0738+3853 (ngc2419)
cnc / jan30 / psa24
C48 gx 10.3 0910+0702 (ngc2775)
car / jan31 / psa39, 38
C96 oc 3.8 0758-6052 (ngc2516)
C90 pn 9.7 0921-5819 (ngc2867)
C92 bn 6.2 1044-5952 (ngc3372)
C102 oc 1.9 1043-6424 (ic2602)
C91 oc 3.0 1106-5840 (ngc3532)
vel / feb13 / psa39
C85 oc 2.5 0840-5304 (ic2391)
C79 gc 6.7 1018-4625 (ngc3201)
C74 pn 8.2 1008-4026 (ngc3132)
sex / feb22 / psa37
C53 gx 9.1 1005-0743 (ngc3115)
cha / mar01 / psa30
C109 pn -- 1010-8052 (ngc3195)
leo / mar01 / psa34
C40 gx 10.9 1120+1821 (ngc3626)
hya / mar15 / psa36, 46
C59 pn 8.6 1025-1838 (ngc3242)
C66 gc 10.2 1440-2632 (ngc5694)
cru / mar28 / psa49
C99 dn -- 1253-6300 (coalsack)
C98 oc 6.9 1242-6258 (ngc4609)
C94 oc 4.2 1254-6020 (ngc4755)
cen / mar30 / psa49, 48
C100 oc 4.5 1137-6302 (ic2944)
C97 oc 5.3 1136-6137 (ngc3766)
C80 gc 3.6 1327-4729 (ngc5139)
C83 gx 9.5 1306-4928 (ngc4945)
C77 gx 7.0 1326-4301 (ngc5128)
C84 gc 7.6 1346-5122 (ngc5286)
mus / mar30 / psa50
C108 gc 7.8 1226-7240 (ngc4372)
C105 gc 7.3 1300-7053 (ngc4833)
com / apr02 / psa45
C36 gx 9.8 1236+2758 (ngc4559)
C38 gx 9.6 1236+2559 (ngc4565)
C35 gx 11.4 1300+2759 (ngc4889)
cvn / apr07 / psa43
C26 gx 10.6 1218+3749 (ngc4244)
C32 gx 9.3 1242+3232 (ngc4631)
C29 gx 9.8 1311+3703 (ngc5005)
C21 gx 9.4 1228+4406 (ngc4449)
vir / apr11 / psa45
C52 gx 9.3 1249-0548 (ngc4697)
cir / apr30 / psa48
C88 oc 7.9 1506-5536 (ngc5823)
boo / may02 / psa44
C45 gx 10.2 1338+0853 (ngc5248)
nor / may19 / psa58
C89 oc 5.4 1619-5754 (ngc6087)
aps / may21 / psa60
C107 gc 9.3 1626-7212 (ngc6101)
tra / may23 / psa60
C95 oc 5.1 1604-6030 (ngc6025)
dra / may24 / psa31, 51
C3 gx 9.7 1217+6928 (ngc4236)
C6 pn 8.8 1759+6638 (ngc6543)
crv / may28 / psa36
C60 gx 11.3 1202-1852 (ngc4038)
C61 gx 13.0 1202-1853 (ngc4039)
sco / jun03 / psa58
C76 oc 2.6 1654-4148 (ngc6231)
C75 oc 5.8 1626-4040 (ngc6124)
C69 pn 12.8 1714-3706 (ngc6302)
ara / jun10 / psa58
C82 oc 5.2 1641-4846 (ngc6193)
C86 gc 5.6 1741-5340 (ngc6397)
C81 gc 8.1 1726-4825 (ngc6352)
cra / jun30 / psa69
C78 gc 6.6 1808-4342 (ngc6541)
C68 bn 9.7 1902-3657 (ngc6729)
sgr / jul07 / psa66
C57 gx 9.3 1945-1448 (ngc6822)
pav / jul15 / psa70
C93 gc 5.4 1911-5959 (ngc6752)
C101 gx 9.0 1910-6351 (ngc6744)
vul / jul25 / psa62
C37 oc 5.7 2012+2629 (ngc6885)
cyg / jul30 / psa62
C15 pn 9.8 1945+5031 (ngc6826)
C27 bn 7.5 2012+3821 (ngc6888)
C20 bn 6.0 2059+4420 (ngc7000)
C33 sn -- 2056+3143 (ngc6992/5)
C34 sn -- 2046+3043 (ngc6960)
C19 bn 10.0 2154+4716 (ic5146)
del / jul31 / psa64
C47 gc 8.9 2034+0724 (ngc6934)
C42 gc 10.6 2102+1611 (ngc7006)
aqr / aug25 / psa77, 76
C55 pn 8.3 2104-1122 (ngc7009)
C63 pn 6.5 2230-2048 (ngc7293)
lac / aug28 / psa73
C16 oc 6.4 2215+4953 (ngc7243)
peg / sep01 / psa74
C30 gx 9.5 2237+3425 (ngc7331)
C44 gx 11.0 2305+1219 (ngc7479)
C43 gx 10.5 0003+1609 (ngc7814)
tuc / sep17 / psa80
C106 gc 4.0 0024-7205 (ngc104)
C104 gc 6.6 0103-7051 (ngc362)
scl / sep26 / psa09
C72 gx 8.2 0015-3911 (ngc55)
C70 gx 8.1 0055-3741 (ngc300)
C65 gx 7.1 0048-2517 (ngc253)
cep / sep29 / psa73, 71
C12 gx 9.7 2035+6009 (ngc6946)
C4 bn 6.8 2102+6812 (ngc7023)
C9 bn 7.7 2259+6237 (sh2-155)
C2 pn 11.6 0013+7232 (ngc40)
C1 oc 8.1 0044+8520 (ngc188)
cas / oct09 / psa03, 01
C11 bn 7.0 2321+6112 (ngc7635)
C18 gx 9.2 0039+4820 (ngc185)
C17 gx 9.3 0033+4830 (ngc147)
C13 oc 6.4 0119+5820 (ngc457)
C10 oc 7.1 0146+6115 (ngc663)
C8 oc 9.5 0130+6318 (ngc559)
and / oct09 / psa03, 02
C22 pn 9.2 2326+4233 (ngc7662)
C28 oc 5.7 0158+3741 (ngc752)
C23 gx 9.9 0223+4221 (ngc891)
cet / oct15 / psa07
C62 gx 8.9 0047-2046 (ngc247)
C56 pn 8.0 0047-1153 (ngc246)
C51 gx 9.0 0105+0207 (ic1613)
for / nov02 / psa06
C67 gx 9.2 0246-3017 (ngc1097)
per / nov07 / psa02
C14 doc 4.3 0220+5708 (ngc869/884)
C24 gx 11.6 0320+4131 (ngc1275)
hor / nov10 / psa08
C87 gc 8.4 0312-5513 (ngc1261)
tau / nov30 / psa15
C41 oc 1.0 0427+1600 (mel25)
dor / dec17 / psa20, D
C103 bn 1.0 0539-6906 (ngc2070)
col / dec18 / psa18
C73 gc 7.3 0514-4003 (ngc1851)
aur / dec21 / psa12
C31 bn 6.0 0516+3416 (ic405)
cam / dec23 / psa11, 21
C5 gx 9.2 0347+6806 (ic342)
C7 gx 8.9 0737+6536 (ngc2403)
A.L. Caldwell Program Homepage
Caldwell Telrad Finder Charts
*****
*blog under construction*
[all contents within are free use and may be reprinted with author/website acknowledgement]
COMING SOON:
Glass At A Glance: Orion 25x100 GiantView Binocular
The Mess-Cal Marathon
The Last GoTo Convert
Lucky Ned Pepper (And The Steadiest Hands In The West)
Also see:
Saber Does The Stars
pdf (unformatted)
[all contents within are free use and may be reprinted with author/website acknowledgement]
COMING SOON:
Glass At A Glance: Orion 25x100 GiantView Binocular
The Mess-Cal Marathon
The Last GoTo Convert
Lucky Ned Pepper (And The Steadiest Hands In The West)
Also see:
Saber Does The Stars
pdf (unformatted)
Recommended Astro Links:
http://www.astroleague.org/
http://www.darksky.org/
http://www.astronomy.com/
http://www.skyandtelescope.com/
http://astronomy.fm/
http://eyesonthesky.com/Home.aspx
http://www.astromax.org/
http://www.ngcicproject.org/
http://www.messier45.com/
http://www.astronomertalk.com/index.php
http://www.iceinspace.com.au/index.
http://stargazerslounge.com/
http://www.galaxyzoo.org
http://www.astronomerswithoutborders.org/
http://www.cloudynights.com/
http://www.spaceweather.com/
http://messier.seds.org/xtra/marathon/
http://pacastronomy.50megs.com/
http://www.saguaroastro.org/
http://10minuteastronomy.wordpress.com/
http://tinyurl.com/sittinginplato1
http://nightsky.jpl.nasa.gov/
*****
http://www.astroleague.org/
http://www.darksky.org/
http://www.astronomy.com/
http://www.skyandtelescope.com/
http://astronomy.fm/
http://eyesonthesky.com/Home.aspx
http://www.astromax.org/
http://www.ngcicproject.org/
http://www.messier45.com/
http://www.astronomertalk.com/index.php
http://www.iceinspace.com.au/index.
http://stargazerslounge.com/
http://www.galaxyzoo.org
http://www.astronomerswithoutborders.org/
http://www.cloudynights.com/
http://www.spaceweather.com/
http://messier.seds.org/xtra/marathon/
http://pacastronomy.50megs.com/
http://www.saguaroastro.org/
http://10minuteastronomy.wordpress.com/
http://tinyurl.com/sittinginplato1
http://nightsky.jpl.nasa.gov/
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