|   |
J2000
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|   |
SA(s)b{{cite web
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|   |
NASA/IPAC Extragalactic Database
|
|   |
Results for Messier 31
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|   |
http://nedwwwipaccaltechedu/
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|
|
|   |
254 ± 006 Mly <br>(778 ± 17 Kpc ){{cite journal
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|   |
I D Karachentsev, V E Karachentseva, W K Hutchmeier, D I Makarov
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A Catalog of Neighboring Galaxies
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Astronomical Journal
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2004
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127
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2031–2068
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|   |
http://adsabsharvardedu/abs/2004AJ1272031K
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|
|
|   |
Karachentsev, I D Kashibadze, O G
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Masses of the local group and of the M81 group estimated from distortions in the local velocity field
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|   |
Astrophysics
|
|   |
2006
|
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49
|
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1
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3-18
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http://adsabsharvardedu/cgi-bin/nph-bib_querybibcode=2006Ap493K
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I Ribas, C Jordi, F Vilardell, EL Fitzpatrick, RW Hilditch, F Edward
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First Determination of the Distance and Fundamental Properties of an Eclipsing Binary in the Andromeda Galaxy
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Astrophysical Journal
|
|   |
2005
|
|   |
635
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L37-L40
|
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http://adsabsharvardedu/abs/2005ApJ635L37R
|
|   |
McConnachie, A W Irwin, M J Ferguson, A M N Ibata, R A Lewis, G F Tanvir, N
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Distances and metallicities for 17 Local Group galaxies
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Monthly Notices of the Royal Astronomical Society
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|   |
2005
|
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356
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4
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979-997
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http://adsabsharvardedu/cgi-bin/nph-bib_querybibcode=2005MNRAS356979M
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Jensen, Joseph B Tonry, John L Barris, Brian J Thompson, Rodger I Liu, Michael C Rieke, Marcia J Ajhar, Edward A Blakeslee, John P
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Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations
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Astrophysical Journal
|
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2003
|
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February 2003
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583
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2
|
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712-726
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http://adsabsharvardedu/abs/2003ApJ583712J
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−301 ± 1 Km / S
|
|   |
44
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190&prime &times 60&prime
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|   |
Andromeda
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|   |
−200
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|   |
<div style="width: 300px"> M 31, NGC 224, UGC 454,<br>
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The (, also known as '''Messier 31''', '''M31''', or '''NGC 224'''; older texts often called it the ''Great'' ''Andromeda''
''Nebula'' ) is a
Spiral Galaxy approximately 2.5 million
Light-year s away in the
Constellation Andromeda . It is the nearest
Spiral Galaxy to our own, the
Milky Way .
2006 estimates put the mass of the Milky Way to be ~80% of the mass of Andromeda, which is estimated to be 7.1
Solar Mass es.