Intermarkets' Privacy Policy Support
Donate to Ace of Spades HQ! Contact
Ace:aceofspadeshq at gee mail.com Buck: buck.throckmorton at protonmail.com CBD: cbd at cutjibnewsletter.com joe mannix: mannix2024 at proton.me MisHum: petmorons at gee mail.com J.J. Sefton: sefton at cutjibnewsletter.com Recent Entries
Cats and Dogs Living Together Cafe
Quick Hits The Regime Vomits Up Two Eleventh Hour Hits on RFKJr. and Tulsi Gabbard "Star" of Fake Captain America Movie: I Don't Think That Captain America Should Represent America, But Instead Good Things Like Truth and Integrity Former CNN Thumb Chris Cillizza: I'm Totally Surprised That Trump Was Right About Covid Origins and Anthony Fauci Wrong; It Just Never Occurred to Me That the President of the United States Might Have Access to Secret Information I Didn't Have More Karoline Leavitt: It's Nice of You to Suddenly Care About the Price of Eggs, But the Increase Happened While the President You Corruptly Covered for Was "Sleeping Upstairs in the Residence" Karoline Leavitt's First Press Briefing Features a Roll Call of the Criminal Aliens The Democrats Protected for Decades and Who Trump Has Now Arrested Sean Duffy Confirmed as Secretary of Transportation Sean Duffy Confirmed as Secretary of Transportation; Karoline Leavitt's Inaugural Press Briefing Features a Slideshow of Now-Arrested Criminal Aliens and Their Crimes Jm J. Acosta Flounces Off CNN, Suggesting That CNN Is "Bowing to a Tyrant" for Shitcanning Him Absent Friends
Bandersnatch 2024
GnuBreed 2024 Captain Hate 2023 moon_over_vermont 2023 westminsterdogshow 2023 Ann Wilson(Empire1) 2022 Dave In Texas 2022 Jesse in D.C. 2022 OregonMuse 2022 redc1c4 2021 Tami 2021 Chavez the Hugo 2020 Ibguy 2020 Rickl 2019 Joffen 2014 AoSHQ Writers Group
A site for members of the Horde to post their stories seeking beta readers, editing help, brainstorming, and story ideas. Also to share links to potential publishing outlets, writing help sites, and videos posting tips to get published.
Contact OrangeEnt for info:
maildrop62 at proton dot me Cutting The Cord And Email Security
Moron Meet-Ups
|
« CAC's Art Thread: defining the undefinable and the MONA |
Main
| Pre-ONT -- Summer foods »
June 16, 2013
CAC's Spaced-Out Challenge: Galaxy Guide (Part 1)Apologies for my late posting of this week's edition, going back to the regular Wednesday schedule this week. This edition will feature objects best viewed from a dark sky site. To best appreciate most of the features discussed in the Milky Way Challenges, I recommend visiting a site colored at least green zone or better, blue/grey/black preferred, on the map and link below. Milky Way observing runs by the same rules as deep sky object observing: wait for a new moon, or when the moon isn't up to brighten the sky. Use red-LED lighting to preserve night vision. Allow your eyes to adjust at least thirty minutes before observing. Avoid ingesting alcohol or narcotics as these will interfere with your vision. Ready? Read on. The Jshine Dark Sky Finder here is a great google map hybrid with marked dark sky locations for the lower 48 I've used several times in hunting down better skies. Any regions that aren't highlighted on jshine with white-red-orange-yellow-blue-green have pretty much prestine skies. It uses a map overlay though that makes the northeast and midwest "brighter" than they actually are, so keep the above county-level map in mind if you live in those regions. The Milky Way from our perspective "wraps" around us, with the brighter portion (looking more towards the inside of the galaxy) visible in the summer months and the fainter portion visible in the winter. As we are in summer, we are going to focus on the features in this brighter portion over the next few weeks, and we'll begin from the very heart of our home, roughly midway between Sagittarius and Scorpius. Interesting objects near the Galactic Center (from our perspective) are the focus this week, and we'll stick with five. The Galactic Dark Horse The "Dark Horse" nebula is actually made up of several smaller "dark" nebulae creating a large horse lined diagonally with the rest of the milky way band, hovering in the constellation Ophiuchus over the midpoint between Sagittarius and Scorpius. The darker and more obvious the "horse", the darker your skies are overall. Some residents of yellow/borderline green Bortle sky zones can spot darker segments of it on clear nights. The darker portion towards it's rear appears in more washed-out skies as a smoking pipe, hence it's alternate name, the Pipe Nebula. The Galactic Horse may be tricky to spot even from a perfect site, but once it "pops" out at you, you'll wonder how you ever overlooked it. The overview chart should be enough to locate it naked-eye, but if you're having trouble, start over at the red star Antares in the Fish Hook (Scorpius), then "arc" a bit with your eye wandering through the thickest region of the milky way towards Sagittarius. Dark regions should leap out from a good sight, and the largest of these form the bottom of the horse. The Great Sagittarius Star Cloud The Great Sagittarius Star Cloud is the deepest galaxy feature that can be seen in visible light, a mere 1800 light years from the center. Unlike much of the rest of the galaxy's bulge, which is obscured by massive dust clouds, "Baade's Window", a gap in the closer spiral arms discovered by astronomy Walter Baade, offers a sizable opening straight into the Milky Way's heart. Through binoculars, it is impossible to resolve the millions of stars tightly packed in the galactic core, but in a moderate telescope you might get some luck, and try for two globular clusters "embedded" within: NGC 6522 and 6528. Small, faint dark nebulae appear here and there (and really pop with binoculars) and give a great sense of depth, shattering the illusion of the milky way's apparent two dimensional appearance over our heads. As an interesting note on the star cloud, on the chart above there appears a red X just due "west" of it. This marks the physical center of our Milky Way, inside which supermassive black hole Sagittarius A* is quietly humming away. Ptolemy's Cluster The stars shown are only about 1000 light years away from us, providing an interesting contrast to the smattering of galactic bulge stars behind it and further expanding our sense of depth when examining the galaxy. The Butterfly Cluster The False Comet in Scorpius Our last target is a trick of the eye. Aim your binoculars and the illusion is shattered, but the components of the apparent "comet" are themselves beautiful targets: At the head or coma of the comet is gorgeous optical double Zeta Scorpii, the star where the tail of the Scorpion begins to curl. To it's north and east, the comet's tail is formed by star clusters NGC 6231, Collinder 316, and NGC 6242. In terms of demonstrating the layers of the galaxy, the False Comet exposes the illusion of stars appearing close to one another: the component stars of the optical double Zeta Scorpii are six-thousand light years apart. If you can, I seriously suggest you pick up the July issue of Sky and Telescope, which has an incredible guide to the structure of the Milky Way, part one dovetailing well with this week's Challenge: the region between Sagittarius and Scorpius. Next week, we move our focus to the nebulae from Scutum to Sagittarius, working our way both visibly and physically outwards from the galactic heart and closer to our own backyard. As always, use Ace's Amazon storefront for your astro needs, check out the light pollution object list here, clear skies to you and keep looking up! | Recent Comments
Anna Puma:
"Soothsayer
#44 ..."
Alberta Oil Peon: "The really sad part about that um, "rapper" woman ..." Soothsayer likes gladiators: " For those unawares, I mention the fucking asshol ..." Anna Puma: "Perhaps I should move off the dark fantasy theme ..." Euro: "PSA. Nobody go internet shopping for boots of win ..." El Mariachi: ""I want to remind us that George Orwell, in his no ..." Dash my lace wigs!: "Across the back yard, there's a home that I think ..." TJ Jackson: "Screw these NGOs. Tax them all and prosecute the ..." publius, Rascally Mr. Miley (w6EFb): " I had a thing for Stephanie Zimbalist back in ..." Comrade Flounder, Disinformation Demon: "Racist border collies. That is amazing work. ..." Anna Puma: "RMBS, no ..." RedMindBlueState[/i][/b][/s][/u]: "Oh, ffs, CBS has rolled out the Doomsday Clock. D ..." Recent Entries
Cats and Dogs Living Together Cafe
Quick Hits The Regime Vomits Up Two Eleventh Hour Hits on RFKJr. and Tulsi Gabbard "Star" of Fake Captain America Movie: I Don't Think That Captain America Should Represent America, But Instead Good Things Like Truth and Integrity Former CNN Thumb Chris Cillizza: I'm Totally Surprised That Trump Was Right About Covid Origins and Anthony Fauci Wrong; It Just Never Occurred to Me That the President of the United States Might Have Access to Secret Information I Didn't Have More Karoline Leavitt: It's Nice of You to Suddenly Care About the Price of Eggs, But the Increase Happened While the President You Corruptly Covered for Was "Sleeping Upstairs in the Residence" Karoline Leavitt's First Press Briefing Features a Roll Call of the Criminal Aliens The Democrats Protected for Decades and Who Trump Has Now Arrested Sean Duffy Confirmed as Secretary of Transportation Sean Duffy Confirmed as Secretary of Transportation; Karoline Leavitt's Inaugural Press Briefing Features a Slideshow of Now-Arrested Criminal Aliens and Their Crimes Jm J. Acosta Flounces Off CNN, Suggesting That CNN Is "Bowing to a Tyrant" for Shitcanning Him Search
Polls! Polls! Polls!
Frequently Asked Questions
The (Almost) Complete Paul Anka Integrity Kick
Primary Document: The Audio
Paul Anka Haiku Contest Announcement Integrity SAT's: Entrance Exam for Paul Anka's Band AllahPundit's Paul Anka 45's Collection AnkaPundit: Paul Anka Takes Over the Site for a Weekend (Continues through to Monday's postings) George Bush Slices Don Rumsfeld Like an F*ckin' Hammer Top Top Tens
Democratic Forays into Erotica New Shows On Gore's DNC/MTV Network Nicknames for Potatoes, By People Who Really Hate Potatoes Star Wars Euphemisms for Self-Abuse Signs You're at an Iraqi "Wedding Party" Signs Your Clown Has Gone Bad Signs That You, Geroge Michael, Should Probably Just Give It Up Signs of Hip-Hop Influence on John Kerry NYT Headlines Spinning Bush's Jobs Boom Things People Are More Likely to Say Than "Did You Hear What Al Franken Said Yesterday?" Signs that Paul Krugman Has Lost His Frickin' Mind All-Time Best NBA Players, According to Senator Robert Byrd Other Bad Things About the Jews, According to the Koran Signs That David Letterman Just Doesn't Care Anymore Examples of Bob Kerrey's Insufferable Racial Jackassery Signs Andy Rooney Is Going Senile Other Judgments Dick Clarke Made About Condi Rice Based on Her Appearance Collective Names for Groups of People John Kerry's Other Vietnam Super-Pets Cool Things About the XM8 Assault Rifle Media-Approved Facts About the Democrat Spy Changes to Make Christianity More "Inclusive" Secret John Kerry Senatorial Accomplishments John Edwards Campaign Excuses John Kerry Pick-Up Lines Changes Liberal Senator George Michell Will Make at Disney Torments in Dog-Hell Greatest Hitjobs
The Ace of Spades HQ Sex-for-Money Skankathon A D&D Guide to the Democratic Candidates Margaret Cho: Just Not Funny More Margaret Cho Abuse Margaret Cho: Still Not Funny Iraqi Prisoner Claims He Was Raped... By Woman Wonkette Announces "Morning Zoo" Format John Kerry's "Plan" Causes Surrender of Moqtada al-Sadr's Militia World Muslim Leaders Apologize for Nick Berg's Beheading Michael Moore Goes on Lunchtime Manhattan Death-Spree Milestone: Oliver Willis Posts 400th "Fake News Article" Referencing Britney Spears Liberal Economists Rue a "New Decade of Greed" Artificial Insouciance: Maureen Dowd's Word Processor Revolts Against Her Numbing Imbecility Intelligence Officials Eye Blogs for Tips They Done Found Us Out, Cletus: Intrepid Internet Detective Figures Out Our Master Plan Shock: Josh Marshall Almost Mentions Sarin Discovery in Iraq Leather-Clad Biker Freaks Terrorize Australian Town When Clinton Was President, Torture Was Cool What Wonkette Means When She Explains What Tina Brown Means Wonkette's Stand-Up Act Wankette HQ Gay-Rumors Du Jour Here's What's Bugging Me: Goose and Slider My Own Micah Wright Style Confession of Dishonesty Outraged "Conservatives" React to the FMA An On-Line Impression of Dennis Miller Having Sex with a Kodiak Bear The Story the Rightwing Media Refuses to Report! Our Lunch with David "Glengarry Glen Ross" Mamet The House of Love: Paul Krugman A Michael Moore Mystery (TM) The Dowd-O-Matic! Liberal Consistency and Other Myths Kepler's Laws of Liberal Media Bias John Kerry-- The Splunge! Candidate "Divisive" Politics & "Attacks on Patriotism" (very long) The Donkey ("The Raven" parody) |