Schnee Mann wrote on 11/5/23 8:25 pm:
> If I look at a quasi-circular galaxy "frontally", thus normal to the
> circular plane, all its light rays come to me practically
> simultaneously (galaxy far away, light rays almost parallel).
>
> But if the structure is "slanted" relative to me, the light rays
> emitted by it at the same time do not arrive at me at the same time.
>
> It seems to me that this results in an "optical distortion" of the
> galaxy.
>
> It is difficult to write what I mean only as text. Therefore I have
> created a pdf file with concrete simple numerous values.
>
> The size of the file attachment is kept within tolerable limits (not
> too much text or sketches):
> jmfp5it64blik6qs7dkv8o0fkjfqeulc62@4ax.com
>
> Is this correct or a fallacy?
>
The Galaxy nearest to our own 'Milky Way Galaxy' is the 'Andromeda
Galaxy' and is approx 2.5 Million Light-years from the Milky Way Galaxy.
It's diameter is approx 150,000 Light years across.

So, as it is, more or less, edge-on to us, that would mean the light
from those stars nearest us but still in the Andromeda Galaxy get here
about 75,000 years before the light from those stars out on the sides
and another 75,000 years before the light from the stars at the 'back'
of The Andromeda Galaxy.

So, although the light rays may get to us 'simultaneously', some of the
rays are a lot older than others!! Not "optical distortion", just the
greater distance travelled.
--
Daniel

On Fri, 12 May 2023 20:16:12 +1000, Daniel65
<daniel47@nomail.afraid.org> wrote:

>So, as it is, more or less, edge-on to us,

Yes, I confirm.
But in my sketches there the galaxy which is in a slanted position
relative to me, moves "horizontally" but not "vertically" like
Andromeda does.
I know this is a very theoretical case.

What I mean as "horizontal" move, see another example:
The sun does not move vertically to me. Within some minutes it moves
horizontally (approximation, true: circular arc). A light beam needs
approx. 8.3 minutes from the sun to the earth. When I see the sun this
moment, it was in this position approx. 8.3 minutes ago. The real
position of the the sun in this moment is approx. 4 * sun diameter
more in the west.
--
Schnee Mann

If I look at a quasi-circular galaxy "frontally", thus normal to the
circular plane, all its light rays come to me practically
simultaneously (galaxy far away, light rays almost parallel).

But if the structure is "slanted" relative to me, the light rays
emitted by it at the same time do not arrive at me at the same time.

It seems to me that this results in an "optical distortion" of the
galaxy.

It is difficult to write what I mean only as text. Therefore I have
created a pdf file with concrete simple numerous values.

The size of the file attachment is kept within tolerable limits (not
too much text or sketches):
jmfp5it64blik6qs7dkv8o0fkjfqeulc62@4ax.com

Is this correct or a fallacy?
--
Schnee Mann