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Astronomy Picture of the Day -- M31: The Andromeda Galaxy
NASA ^ | June 26, 2013 | (see photo credit)

Posted on 06/25/2013 9:10:35 PM PDT by SunkenCiv

Explanation: Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. The diffuse light from Andromeda is caused by the hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's image are actually stars in our Galaxy that are well in front of the background object. Andromeda is frequently referred to as M31 since it is the 31st object on Messier's list of diffuse sky objects. M31 is so distant it takes about two million years for light to reach us from there. Although visible without aid, the above image of M31 was taken with a small telescope. Much about M31 remains unknown, including how it acquired its unusual double-peaked center.

June 26, 2013

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: andromeda; apod; astronomy; m31; messierobjects; science
[Credit & Copyright: Lorenzo Comolli]

1 posted on 06/25/2013 9:10:35 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
The Big One.

2 posted on 06/25/2013 9:11:47 PM PDT by SunkenCiv (McCain or Romney would have been worse, if you're a dumb ass.)
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To: SunkenCiv

If I ever have a daughter, I want to name her Andromeda.


3 posted on 06/25/2013 9:15:58 PM PDT by wastedyears (I'm a gamer not because I choose to have no life, but because I choose to have many.)
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To: wastedyears

There are lots of good astronomy related names.


4 posted on 06/25/2013 9:17:52 PM PDT by Impy (Bring back the spoils system.)
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To: SunkenCiv

yawn. they all look the same. ;)


5 posted on 06/25/2013 9:18:55 PM PDT by schm0e ("we are in the midst of a coup.")
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To: Impy

quark is my favorite.


6 posted on 06/25/2013 9:19:15 PM PDT by schm0e ("we are in the midst of a coup.")
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To: SunkenCiv

I was under the impression that she was 200 thousand light years away, not two million.


7 posted on 06/25/2013 9:21:28 PM PDT by going hot (Happiness is a momma deuce)
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To: going hot

According to this wiki it is 2.5 million light years away.
https://en.wikipedia.org/wiki/Andromeda_Galaxy

The Milky Way and Andromeda galaxies are supposed to collide in about 3.75 billion years.


8 posted on 06/25/2013 9:48:37 PM PDT by Jack Hydrazine (I’m not a Republican, I'm a Conservative! Pubbies haven't been conservative since before T.R.)
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To: going hot

2.5 million or so, actually.

million, thousand....in light years. It makes no difference to us really.

Hopefully one day we can travel faster than light. But......I doubt it.


9 posted on 06/25/2013 9:50:25 PM PDT by FreedomStar3028
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To: Impy

Callista is another one.


10 posted on 06/25/2013 10:04:25 PM PDT by wastedyears (I'm a gamer not because I choose to have no life, but because I choose to have many.)
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To: FreedomStar3028

Of course, at 2.5 million ly away, it is very close on the scale of our own galaxy, which is 100 thousand ly across ... only 25 times our galactic diameter. The moon is 30 earth diameters distant from earth, which is comparable. In fact, the Andromeda Nebula appears much larger in the sky than the moon! However it is very faint, and only the core is visible to the naked eye.

“Thinking is the best way to travel” - The Moody Blues


11 posted on 06/25/2013 10:10:33 PM PDT by dr_lew
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To: SunkenCiv

been looking at that picture my whole life. nothings changed.


12 posted on 06/25/2013 10:12:21 PM PDT by fish hawk (no tyrant can remain in power without the consent and cooperation of his victims.)
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To: fish hawk
been looking at that picture my whole life. nothings changed.

... except the picture!

13 posted on 06/25/2013 10:33:44 PM PDT by dr_lew
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To: dr_lew; fish hawk
Well, here's a scan from Timothy Ferris' GALAXIES, which was knock your socks off stuff in 1982. ( That smudge line is a mar in my copy of the book. ) You could say it's not substantially different from the APOD, but it is an inferior image.


14 posted on 06/25/2013 11:03:24 PM PDT by dr_lew
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To: dr_lew

have any idea when that picture was taken? I have some pretty old astronomy books and they all have that picture, Aloha from Maui


15 posted on 06/25/2013 11:40:15 PM PDT by fish hawk (no tyrant can remain in power without the consent and cooperation of his victims.)
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To: fish hawk

It’s just credited to “Hale Observatories”


16 posted on 06/26/2013 1:36:55 AM PDT by dr_lew
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To: fish hawk

The picture is best when combined with facts about the subject. millions of light years is an awesome distance


17 posted on 06/26/2013 2:13:17 AM PDT by eccentric (a.k.a. baldwidow)
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To: SunkenCiv

Are there any images which delete the milky way stars and you only see the Andromeda galaxy by itself?


18 posted on 06/26/2013 2:20:52 AM PDT by xp38
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To: SunkenCiv
When I hear the name Andromeda, this

is who I immediately think of.

19 posted on 06/26/2013 4:47:39 AM PDT by Don W (Know what you WANT. Know what you NEED. Know the DIFFERENCE!)
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To: dr_lew

Upside down

:)

A neat trick to pull on newcomers is to tell them you are going to show them Andromeda, but, actually show them the larger of the satellites, M32.

THEN show them the big guy. And it’s 2.5 Million LY away!


20 posted on 06/26/2013 6:54:00 AM PDT by Conan the Librarian (The Best in Life is to crush my enemies, see them driven before me, and the Dewey Decimal System)
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To: wastedyears

If I named my daughter that, combined with the last name, she’d sound like the star of a Blaxploitation movie.


21 posted on 06/26/2013 9:01:04 AM PDT by fieldmarshaldj (Resist We Much)
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To: Don W

Who’s that?


22 posted on 06/26/2013 10:05:25 AM PDT by wastedyears (I'm a gamer not because I choose to have no life, but because I choose to have many.)
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To: wastedyears

Lexa Doig. Canadian actress who played the avatar of a futuristic warship called the Andromeda in a series of the same name. The show was set in outer space.

Kevin Sorbo played the Captain of said ship.

It was a fun, quirky at times little adventure.


23 posted on 06/26/2013 11:05:40 AM PDT by Don W (Know what you WANT. Know what you NEED. Know the DIFFERENCE!)
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To: dr_lew

Too bad, that would be a site to see.


24 posted on 06/26/2013 1:56:11 PM PDT by FreedomStar3028
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To: wastedyears

Maybe her middle name could be Dromeda, first name Anne?


25 posted on 06/26/2013 4:05:06 PM PDT by SunkenCiv (McCain or Romney would have been worse, if you're a dumb ass.)
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To: Don W

Hard to forget.


26 posted on 06/26/2013 4:14:17 PM PDT by SunkenCiv (McCain or Romney would have been worse, if you're a dumb ass.)
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To: SunkenCiv

Nah, I like Andromeda as one word.


27 posted on 06/26/2013 6:39:57 PM PDT by wastedyears (I'm a gamer not because I choose to have no life, but because I choose to have many.)
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