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the andromeda galaxy (Original Post) moonshinegnomie Oct 2025 OP
Breathtaking! SheltieLover Oct 2025 #1
Magnificent! biophile Oct 2025 #2
Spectacular! 3catwoman3 Oct 2025 #3
i plan on it moonshinegnomie Oct 2025 #4
Amazing! To get a feel for scale and scope of the universe.... NCDem47 Oct 2025 #5
its not the closest neighbor moonshinegnomie Oct 2025 #6
I learn something new every day! NCDem47 Oct 2025 #7
Oh, quibbling about such small numbers..... erronis Oct 2025 #15
And the number of galaxies in the visible universe airplaneman Oct 2025 #24
Your photos and explanations are spectacular! You could be our version of Carl Sagan 🪐 Deuxcents Oct 2025 #8
Amazing! HAB911 Oct 2025 #9
Your night sky shots are amazing. Thank you very much for sharing. brer cat Oct 2025 #10
When you're shooting... GiqueCee Oct 2025 #11
i use a tracking mount moonshinegnomie Oct 2025 #13
Thank you... GiqueCee Oct 2025 #21
LOL! You're in good company, GiqueCee! BComplex Oct 2025 #22
Superb. Celerity Oct 2025 #12
This is killer SpankMe Oct 2025 #14
nope,heavy light pollution moonshinegnomie Oct 2025 #23
That makes the pic even more remarkable SpankMe Oct 2025 #27
Amazing!! Quanto Magnus Oct 2025 #16
What a gorgeous photo! calimary Oct 2025 #17
Wowsa! irisblue Oct 2025 #18
Absolutely beautifully done angrychair Oct 2025 #19
Stunning! I am completely in awe, not just FemDemERA Oct 2025 #20
I am at a loss for words! ShazzieB Oct 2025 #25
Outstanding! -misanthroptimist Oct 2025 #26

NCDem47

(3,354 posts)
5. Amazing! To get a feel for scale and scope of the universe....
Fri Oct 17, 2025, 11:02 AM
Oct 2025

It would take 2.5 MILLION years at the speed of light to reach Andromeda. And it's the Milky Way's closest galaxy neighbor!

And what we're seeing of Andromeda in full view would take 260,000 years at the speed of light to travel from one end to the other. It is estimated that there are one TRILLION stars in Andromeda. This photo is capturing all of that.


moonshinegnomie

(3,931 posts)
6. its not the closest neighbor
Fri Oct 17, 2025, 11:10 AM
Oct 2025

there are several small galaxies closer
the magellenic clouds are on the order of 200k light years away
there is alo a very small galaxy called the sagittarius dwarf galaxy that is only 70k light years away, that was only discovered in 1994. there may be a small galaxy even closer,only 25k light years away that was discovered in 2003 but its not confiremed to be an actual galaxy


airplaneman

(1,381 posts)
24. And the number of galaxies in the visible universe
Fri Oct 17, 2025, 02:58 PM
Oct 2025

Not counting Andromeda two to three additional trillion galaxies in the visible universe. The total being as many as three trillion and one galaxies. Mind boggling isn’t it?
-Airplane

Deuxcents

(25,994 posts)
8. Your photos and explanations are spectacular! You could be our version of Carl Sagan 🪐
Fri Oct 17, 2025, 11:28 AM
Oct 2025

I say that with all due respect..like the other poster, I learn something new here everyday. Thank you

GiqueCee

(3,618 posts)
11. When you're shooting...
Fri Oct 17, 2025, 12:14 PM
Oct 2025

... for nine hours, how do you calibrate the movement of your camera to coincide with earth's movement in relation to the subject, in this case, the Andromeda Galaxy? Your photos are magnificent!

moonshinegnomie

(3,931 posts)
13. i use a tracking mount
Fri Oct 17, 2025, 12:29 PM
Oct 2025

i align it with the north galactic pole (think of a line thru the eart from the south pole to the north pole and extending to infinity)
then the mount rotates at the same rate as the earth so the object stars in the same place

GiqueCee

(3,618 posts)
21. Thank you...
Fri Oct 17, 2025, 01:38 PM
Oct 2025

... I like to learn something new every day. Though, being year and change shy of eighty, I thought I'd be a lot smarter by now.

moonshinegnomie

(3,931 posts)
23. nope,heavy light pollution
Fri Oct 17, 2025, 02:11 PM
Oct 2025

on the bortle scale of light polluion in in an 8 out of 9 (just outside austin texas in the first suburb north)

angrychair

(11,897 posts)
19. Absolutely beautifully done
Fri Oct 17, 2025, 12:48 PM
Oct 2025

Very nice. The one thing I hate about images of space is that they are often incredibly beautiful and stunning images but are incredibly poor ways to convey the magnitude of what is being observed.
For example, in this image is an entirely different galaxy than our own. The Andromeda Galaxy is more than twice the size of our Milky Way Galaxy at over 200,000 light years across and is believed to contain over a trillion planets.
I mean let's be honest, our mind can't even grasp the size of our own galaxy, much less another one. It's just so mind bogglingly huge in scale that you can't help but be humbled and realize that our little problems here are completely insignificant to the universe. If we destroy ourselves over the next couple of years the universe won't even have had time to notice we existed at all.
It's up to us to survive and prove to the universe that we existed and we mattered. We are likely hundreds of years and dozens of generations from doing that but for now let's just try to get through the day 😊

FemDemERA

(703 posts)
20. Stunning! I am completely in awe, not just
Fri Oct 17, 2025, 01:33 PM
Oct 2025

At the beauty of what is out there, but in your ability to capture it. Thank you so much for sharing.

ShazzieB

(22,333 posts)
25. I am at a loss for words!
Fri Oct 17, 2025, 09:54 PM
Oct 2025

All of the words I can think of to even attempt to describe this have already been used. It's absolutely out of this world -- pun intentended!

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