Astrophysics (index)about

Andromeda

(M31, Messier 31, NGC 224)
(spiral galaxy in the Local Group)

Andromeda (M31 or Messier 31, NGC 224) is a Spiral Galaxy about two and a half million light-years away. It used to be known as the Great Andromeda Nebula. It has about a trillion stars and is larger than the Milky Way. Andromeda and the Milky Way are the two largest galaxies of the Local Group and two of its only three spiral galaxies.

Characteristics:

Satellite Galaxies of Andromeda are known as Andromeda I (or And I), Andromeda II, etc.


(galaxy,Local Group,spiral)
http://en.wikipedia.org/wiki/Andromeda_Galaxy
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
.0002780kpc2.54MlyAndromeda
PrefixExampleSurvey/Catalog 
AndAnd IAndromedaM31 satellites
AndromedaAndromeda IAndromedaM31 satellites
Coordinates:M31
J004244.3+414209

Referenced by:
Astronomical Quantities
Astronomical Unit (AU)
Galaxy Main Sequence
HBK
Hierarchical Assembly of Galaxies
Large Magellanic Cloud (LMC)
Local Group (LG)
Triangulum Galaxy (M33)
Messier Catalog (M)
Milky Way
Morgan Classification
Nebula
Nova
PAndAS
Principal Galaxies Catalog (PGC)
POINTE-AGAPE
Satellite Galaxy
SKHB
Spiral Galaxy

index