Jump to content

Template:Infobox galaxy/sandbox

From Wikipedia, the free encyclopedia


Andromeda Galaxy
The Andromeda Galaxy
Observation data (J2000 epoch)
Pronunciation/ænˈdrɒmɪdə/
ConstellationAndromeda
Right ascension00h 42m 44.3s
Declination+41° 16′ 9″
Redshiftz = −0.001001
(minus sign
indicates blueshift)
Heliocentric radial velocity−301 ± 1 km/s
Distance2.54 ± 0.11 Mly
(778 ± 33 kpc)
Apparent magnitude (V)3.44
Absolute magnitude (V)−21.5
Surface brightness13,5 mag/arcmin²
Characteristics
TypeSA(s)b
Mass~1.5×1012[1] M
Number of stars~1 trillion (1012)
Size~220 kly (diameter)
Apparent size (V)3.167° × 1°
Other designations
M31, NGC 224, UGC 454, PGC 2557, 2C 56 (Core), CGCG 535-17, MCG +07-02-016, IRAS 00400+4059, 2MASX J00424433+4116074, GC 116, h 50, Bode 3, Flamsteed 58, Hevelius 32, Ha 3.3, IRC +40013


{{{name}}}
[[File:{{{image}}}|frameless]]
{{{caption}}}
Observation data ({{{epoch}}} epoch)
Pronunciation{{{pronounce}}}
Constellation{{{constellation name}}}
Right ascension{{{ra}}}
Declination{{{dec}}}
Redshift{{{z}}}
Heliocentric radial velocity{{{h_radial_v}}}
Galactocentric velocity{{{gal_v}}}
Distance{{{dist_ly}}}
Group or cluster{{{group_cluster}}}
Apparent magnitude (V){{{appmag_v}}}
Apparent magnitude (B){{{appmag_b}}}
Absolute magnitude (V){{{absmag_v}}}
Absolute magnitude (B){{{absmag_b}}}
Surface brightness{{{sbrightness}}}
Characteristics
Type{{{type}}}
Mass{{{mass}}} M
Mass/Light ratio{{{mass_light_ratio}}} M/L
Number of stars{{{stars}}}
Size{{{size}}}
Apparent size (V){{{size_v}}}
Half-light radius (physical){{{half_light_radius_pc}}}
Half-light radius (apparent){{{half_light_radius_arcminsec}}}
H I scale length (physical){{{h1_scale_length_pc}}}
H I scale length (apparent){{{h1_scale_length_arcminsec}}}
X-ray radius (physical){{{xray_radius_pc}}}
X-ray radius (apparent){{{xray_radius_arcminsec}}}
Notable features{{{notes}}}
{{{embed}}}
Other designations
{{{names}}}
References: {{{references}}}
  1. ^ Jorge Peñarrubia; Yin-Zhe Ma; Matthew G. Walker; Alan McConnachie (2014). "A dynamical model of the local cosmic expansion". Monthly Notices of the Royal Astronomical Society. 433 (3): 2204–2022. arXiv:1405.0306. Bibcode:2014MNRAS.443.2204P. doi:10.1093/mnras/stu879.