visual distortion of distant galaxies
visual distortion of distant galaxies
I saw the picture today of the neelde galaxy (NGC 4565 ) (july 8 2005) and started wondering about any visual distortions that might be there. galaxies are rotating and always on the move, it occourd to me that although the needle galaxy is 30 million light-years distant, it is also 100.000 across. That probably means that the light from the edge closed to us is younger then the light from the center or the left and right edges of the needle galaxy. Does this result in any visual distortions? or does that galaxy move so slowly that any distortions are negligable?
-
- Ensign
- Posts: 59
- Joined: Thu Jun 16, 2005 3:46 pm
I'm surprised no one has tried to answer this. I would think that the visual distortions would be very noticable.
If the 100.000 diameter galaxy rotates every 200.000 years, (our galaxy takes 220.000,) then by the time the light from the outer edge becomes parallel to the front of the galaxy (50.000 years) the stars would have rotated 1/4th revolution and would be in front. We would be seeing the star as a blur.
If the 100.000 diameter galaxy rotates every 200.000 years, (our galaxy takes 220.000,) then by the time the light from the outer edge becomes parallel to the front of the galaxy (50.000 years) the stars would have rotated 1/4th revolution and would be in front. We would be seeing the star as a blur.
-
- Asternaut
- Posts: 3
- Joined: Fri Jul 15, 2005 5:01 am
- Location: china lake, ca
visual distortion of distant galaxies
c'mon guys - we're talking about 1/3 of 1% here. my eyes aren't that good - are your's?
ckant
It has been my experience that folks who have no vices have very few virtues.
President Abraham Lincoln
It has been my experience that folks who have no vices have very few virtues.
President Abraham Lincoln
-
- Ensign
- Posts: 59
- Joined: Thu Jun 16, 2005 3:46 pm
Isn't that my fault, per chance? I was talking about distortions of star trails there.William Roeder wrote:1/3 of 1% of WHAT?
Why do you expect things to be blurred? I think stars simply would be in wrong positions, and appear to be moving slightly slower/faster along the edge. We can't see stars on the other side anyway.
-
- Ensign
- Posts: 59
- Joined: Thu Jun 16, 2005 3:46 pm
This is not valid, and not because you've missed a coulpe of zeroes. To see anything in two places would require it to move faster than light.If we are seeing the same star at the edge and in the middle at the same time wouldn't it be a blur?
EDIT: Oops
![Embarassed :oops:](./images/smilies/icon_redface.gif)
![Embarassed :oops:](./images/smilies/icon_redface.gif)
![Embarassed :oops:](./images/smilies/icon_redface.gif)
I am so sorry for accidentially
![Image](http://asterisk.apod.com/templates/subSilver/images/lang_english/icon_edit.gif)
![Image](http://asterisk.apod.com/templates/subSilver/images/lang_english/icon_quote.gif)
-
- Ensign
- Posts: 59
- Joined: Thu Jun 16, 2005 3:46 pm
-
- Science Officer
- Posts: 235
- Joined: Tue Jan 25, 2005 12:12 am
- Location: The Enchanted Forests of N. Central USA
-
- Ensign
- Posts: 59
- Joined: Thu Jun 16, 2005 3:46 pm