|
gptkbp:instance_of
|
gptkb:galaxy
|
|
gptkbp:age
|
10 billion years
|
|
gptkbp:body_shape
|
no
yes
Barred spiral
|
|
gptkbp:composed_of
|
Metal-rich
|
|
gptkbp:contains_star
|
gptkb:Yes
yes
approximately 1 trillion
0.5 solar masses per year
1 trillion stars
|
|
gptkbp:coordinates
|
gptkb:Yes
yes
RA 00h 42m 44.3s, Dec +41° 16′ 9″
10h 42m 44s, +41° 16′ 9″
|
|
gptkbp:diameter
|
220000 light years
|
|
gptkbp:discovered_by
|
gptkb:Abraham_Loeb
|
|
gptkbp:distance
|
24.4 mag
|
|
gptkbp:distance_from_earth
|
2.537 million light years
|
|
gptkbp:foot
|
yes
|
|
gptkbp:has_color
|
blue and red
B-V = 0.9
(B-V) = 0.9
|
|
gptkbp:has_galactic_disk
|
yes
|
|
gptkbp:has_galactic_rotation
|
yes
|
|
gptkbp:has_historical_significance
|
yes
First galaxy identified as spiral
|
|
gptkbp:has_luminosity
|
approximately 25 times that of the Milky Way
|
|
gptkbp:has_mass_to_light_ratio
|
100 solar masses per Lsun
|
|
gptkbp:has_notable_star_clusters
|
gptkb:G1
gptkb:G2
|
|
gptkbp:has_spectral_type
|
Sbc
SAB(s)cd
|
|
gptkbp:has_supernova
|
gptkb:Yes
SN 1885 A
|
|
gptkbp:has_type
|
Spiral galaxy
barred spiral galaxy
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
M31 (Andromeda Galaxy)
|
|
gptkbp:is_approximately
|
2.537 million light years away from Earth
|
|
gptkbp:is_associated_with
|
Dark matter
the Andromeda myth
|
|
gptkbp:is_expected_to_collide_with
|
gptkb:Milky_Way
|
|
gptkbp:is_home_to
|
various nebulae
H II regions
various star clusters
Old stars
Young stars
many globular clusters
Star formation regions
many types of stars
young and old stars
Multiple stellar populations
|
|
gptkbp:is_known_for
|
its large size
its bright core
|
|
gptkbp:is_located_in
|
gptkb:Local_Group
|
|
gptkbp:is_nearest_spiral_galaxy_to_earth
|
yes
|
|
gptkbp:is_nearest_to
|
gptkb:Milky_Way
|
|
gptkbp:is_observed_in
|
gptkb:radio_station
gptkb:Hubble_Space_Telescope
Optical
Infrared
over 2500 years
Known since antiquity
|
|
gptkbp:is_part_of
|
gptkb:Laniakea_Supercluster
gptkb:Andromeda–_Milky_Way_collision
gptkb:Andromeda_constellation
gptkb:Andromeda-Milky_Way_collision
gptkb:Local_Supercluster
gptkb:Milky_Way's_Local_Group
the Virgo Supercluster
the Andromeda constellation
the Local Supercluster
the Local Group of galaxies
the Local Group of galaxies.
Andromeda– Milky Way system
the Andromeda-Milky Way system
|
|
gptkbp:is_predicted_to_collide_with
|
Milky Way in 4.5 billion years
|
|
gptkbp:is_studied_for
|
galactic dynamics
Dark energy research
Galaxy formation and evolution
its stellar population
|
|
gptkbp:is_studied_in
|
gptkb:Chandra_X-ray_Observatory
gptkb:Hubble_Space_Telescope
gptkb:astronomy
Astronomers
astrophysics
|
|
gptkbp:is_visible_from
|
gptkb:Yes
yes
northern hemisphere
autumn nights
|
|
gptkbp:lighting
|
23.5 mag/arcsec²
|
|
gptkbp:mass
|
1.5 trillion solar masses
|
|
gptkbp:notable_feature
|
Globular clusters
Dust lanes
Starburst regions
|
|
gptkbp:notable_galaxies
|
spiral structure
complex interactions
Bar structure
Ring structure
SB(s)bc
|
|
gptkbp:orbit_type
|
gptkb:M32
gptkb:NGC_205
gptkb:Yes
|
|
gptkbp:orbital_altitude
|
110 km/s
|
|
gptkbp:orbital_period
|
2.5 billion years
with the Milky Way
|
|
gptkbp:population_density
|
varies across the galaxy
|
|
gptkbp:redshift
|
0.001
-0.001
|
|
gptkbp:surface
|
on nearby galaxies
|
|
gptkbp:universe
|
gptkb:Yes
yes
|
|
gptkbp:bfsParent
|
gptkb:Pegasus_Galaxy
gptkb:Andromeda
gptkb:NGC_205
gptkb:NGC_6822
|
|
gptkbp:bfsLayer
|
5
|