Messier 31

GPTKB entity

Statements (95)
Predicate Object
gptkbp:instance_of gptkb:galaxy
gptkbp:apparent_magnitude approximately 3.44
gptkbp:body_shape gptkb:active_galactic_nucleus
no
gptkbp:contains_star yes
approximately 1 trillion
over 450
approximately 1.5 solar masses per year
many globular clusters
1.5 solar masses per year
gptkbp:coordinates yes
(121.174°,+21.573°)
gptkbp:diameter 220,000 light years
approximately 220,000 light years
gptkbp:discovered_by gptkb:Giovanni_Battista_Hodierna
gptkb:Simon_Marius
gptkbp:distance_from_earth 2.537 million light years
gptkbp:exhibition gptkb:Charles_Messier
gptkb:Messier_catalog
gptkbp:has_color blue and red
B-V = 0.9
gptkbp:has_component yes
disk, bulge, halo
gptkbp:has_distance_from_milky_way approximately 2.537 million light years
gptkbp:has_gravitational_effects_on surrounding galaxies
gptkbp:has_historical_significance yes
first galaxy identified as a separate entity
gptkbp:has_ngc gptkb:NGC_224
gptkbp:has_observation_tools telescopes
gptkbp:has_old_star_population yes
gptkbp:has_role cosmology research
gptkbp:has_spectral_type Sbc
gptkbp:has_supernova yes
at its center
gptkbp:has_tidal_interactions_with gptkb:Milky_Way
gptkbp:has_type gptkb:spiral_galaxy
https://www.w3.org/2000/01/rdf-schema#label Messier 31
gptkbp:is_approaching gptkb:Milky_Way
gptkbp:is_approximately 2.537 million light years away from Earth
gptkbp:is_associated_with Andromeda mythology
Andromeda mythological figure
gptkbp:is_closest_galaxy_to gptkb:Milky_Way
gptkbp:is_home_to young stars
various nebulae
star-forming regions
various types of stars
many globular clusters
various stellar populations
gptkbp:is_known_for its large size
its bright core
gptkbp:is_located_in gptkb:Andromeda_constellation
gptkbp:is_observed_in documented since antiquity
observed for centuries
gptkbp:is_part_of gptkb:Laniakea_Supercluster
gptkb:Andromeda_galaxy_group
gptkb:Local_Group
gptkb:Messier_catalog
gptkb:Andromeda_constellation_group
gptkb:Local_Supercluster
cosmic web
cosmic structure
local supercluster
Milky Way's future collision path
intergalactic space.
gptkbp:is_studied_for galactic dynamics
dark matter research
stellar evolution
galaxy formation theories
gptkbp:is_studied_in gptkb:NASA
gptkb:astronomy
gptkbp:is_visible_from gptkb:Earth
yes
naked eye
northern hemisphere
autumn sky
gptkbp:lighting 23.5 mag/arcsec²
approximately 24.8 mag/arcmin²
gptkbp:mass 1.5 trillion solar masses
about 1 trillion solar masses
compared to other galaxies
gptkbp:notable_galaxies SA(s)b
gptkbp:orbit_type gptkb:M110
gptkb:M32
gptkbp:orbital_altitude 110 km/s
gptkbp:population_density varies across the galaxy
gptkbp:redshift -0.001
approximately 0.0011
gptkbp:size gptkb:Milky_Way
gptkbp:spacecraft yes
gptkbp:targets many telescopic observations
gptkbp:title gptkb:Andromeda_Nebula
gptkbp:type_of gptkb:spiral_galaxy
gptkbp:universe yes
gptkbp:bfsParent gptkb:Andromeda_Galaxy
gptkbp:bfsLayer 4