Our Galaxy and Andromeda´s Galaxy

[Flak]

Acording to a science magazine, the people studing the cosmos finds the Andromeda`s Galaxy so similiar to ours that they think it is like a mirror. Maybe there are some kind of symetry on space, or that the galaxies form in the same way.

[Thales]

The laws of physics being the same for all observers this observation is neither startling nor unexpected. Also given our perspective of the cosmos is firmly embedded inside our galaxy, making statements about the absolute similarity between our galaxy and any other is based on errorneous assumptions.

[[Tycho?]]

Do you have a link to this magazine? I've never heard anything like this. Spiral galaxies are very common.

[Alexa]

They have something in common, but they are not similar at all. The big difference is caused by the number of suns into a presumed central black holes space.

 

It seems Andromeda has around 30 million suns and out Milky way has only 2.6 million suns.

 

See more on :

http://www.space.com/imageoftheday/image_of_day_030528.html

[Flak]

'']Do you have a link to this magazine? I've never heard anything like this. Spiral galaxies are very common.

 

Astronomy October 2004

http://www.astronomy.com/

[Thales]

On another note (this doesn't refer to andromeda) there is the possiblity that if space is bound on a 3sphere (ie a sphere in 4D space) then light could reach us from the 'back' of galaxies. It is of course, reliant on the age of the universe and whether the light from complex structures such as galaxies has had time to tranverse the 'great circle' since formation but it leads to a rather interesting and bizarre conclusion. That of being able to witness the 'same' structures at two distinct points in their evolution (assuming its position on any such great cirlce is not exactly opposite to ours).

[J'Dona]

It seems Andromeda has around 30 million suns and out Milky way has only 2.6 million suns.

Sorry to nitpick (was just a reading mistake in the article), but that's the predicted mass of their central black hole in solar masses. The Milky Way itself has - depending on who you speak to - anywhere from 100 billion to 400 billion stars, and the Andromeda Galaxy has something like two to four times that.

 

In other words, the Andromeda Galaxy would be like a "mirror" of the Milky Way, but quite a bit larger. There's also been talk recently that the Milky Way Galaxy might actually be a bar spiral galaxy, though I can't back that up with an article.

[[Tycho?]]

Astronomy October 2004

http://www.astronomy.com/

 

I can't find it, can you find the article and post the direct link?

[Flak]

You have to buy the magazine , but dont care is just a little coment about, but the entire stuff there is quite interesting.