ok. what i meant to say is: why does andromeda appear to contain different stars on every diagram I have seen?

Answer 1

Constellations are only pretty pictures joining bright stars. There is no absolute definitions on where the boundary between one constellation and another are, it is all arbitrary. And astronomers will not lose time defining such boundaries because it does not add anything to their work, as most stars are located through their position -- right ascension and declination -- anyway.
Therefore any reference you may have will be the result of "artistic" decision on the part of the author of said reference as to where the boundaries are.

Answer 2

Because some charts show more stars then others and different artists can connect the stars however they see fit. There's no official shape. What star is important to the shape for one person might not be important to others. And usually they don't look like anything in real life.


I've see it done as a V or an F or an h. The V makes a better looking picture, though.

Answer 3

Because Andromeda is a very large and complex Galaxy. Also, some of the stars you may see are foreground images which are actually in the Milky Way but are between us and Andromeda.


Doug

Answer 4

GeoffG stated, "you will discover the Andromeda Galaxy with the bare eye, even though it does not look in any respect like a celeb." i think which could remember on your expectancies of what a celeb sounds like. in case you think of a celeb sounds like a faint white dot interior the sky, then it extremely is precisely what the Andromeda galaxy feels prefer to the bare eye. If, on the different hand, you have stable eyes and you assume a celeb to be a pointy pin-prick of twinkling mild, you may observe that the Andromeda galaxy seems extremely fuzzy while in comparison with the different dots interior the sky, and it does not twinkle. in case you leaf by way of a huge sufficient telescope, then you definately will see the explanation for the version.

Answer 5

There ARE defined boundaries of constellations; but there are no defined boundaries on which stars are bright enough to be put on any given star map.

So while some star maps only map stars down to 3rd magnitude, some go to fourth magnitude, and some go even deeper, showing dimmer stars.

Answer 6

boo I would guess its all in the stars really we can never know but you must remember all things move and nothing stays the same and this may be true for you and not for someone else!!

Answer 7

because it contian billions of stars