Andromeda's image

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  • Thread starter George K
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Hi everyone. The next link shows how the Andromeda should look like (from the Earth's surface) if its stars were much more brighter than they are (or if we could have a super-vision).
http://www.iflscience.com/space/what-andromeda-would-look-night-if-it-were-brighter
It seems so amazing as I couldn't even imagine how close the Andromeda is to us.
However, I'd like to verify this info (as I don't know the credibility of this site).
What's your opinion??? Do you agree with this image???
 

Answers and Replies

  • #2
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It looks reasonable to me, but I don't know if this an 'artists impression', or has somebody processed a real photo with the pixel brightness exaggerated,
Either way it's art rather than actual science, I like it though, and I wouldn't say it's misleading
 
  • #3
George Jones
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This seems reasonable to me. The Moon's actual image is a lot smaller than image that most of us have in our mind's eye. The full moon only subtends about 1/2 of a degree, and Andromeda is a few degrees in image size.

Are you familiar with the two stars (separated by 5 1/2 degrees) in the Big Dipper that point to the North Star? On moonless nights I sometimes ask friends "How many full moons will fit between those two stars?" A typical response is "about four", which isn't close to the correct answer, "eleven." When we can't see the Moon, we think the Moon is bigger than it actually is.
 
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  • #4
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It looks reasonable to me, but I don't know if this an 'artists impression', or has somebody processed a real photo with the pixel brightness exaggerated,
Either way it's art rather than actual science, I like it though, and I wouldn't say it's misleading
If you read the text you'll see that the artist took a typical image of Andromeda and added it to the original photo, but in an appropriate scale (i.e. 3 times wider than the moon is).
 
  • #5
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Yes, I discovered that after my previous post, it seems to be a pretty good idea for a way of doing this image with fair accuracy.
 
  • #6
davenn
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It looks reasonable to me, but I don't know if this an 'artists impression'
a complete artists impression of the galaxy .... it looks nothing like that through a scope
 
  • #7
russ_watters
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a complete artists impression of the galaxy .... it looks nothing like that through a scope
Yes, it looks nothing like that through a scope with your eyes, but it looks like a photo to me.
 
  • #8
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Yes, it looks nothing like that through a scope with your eyes, but it looks like a photo to me.
I think that the artist used this photo:
http://www.universetoday.com/30289/andromeda-galaxy/
This photo is just flipped, rotated and scaled. (I can't find how this Andromeda's photo has been produced but it seems to be a combination of different captures through a telescope, as the several "circles of views" depict.)
 

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