gptkbp:instance_of
|
gptkb:galaxy
gptkb:spiral_galaxy
|
gptkbp:apparent_magnitude
|
6.9
|
gptkbp:best_time_to_visit
|
spring months
|
gptkbp:body_shape
|
gptkb:active_galactic_nucleus
|
gptkbp:contains
|
gptkb:supermassive_black_hole
young stars
old stars
|
gptkbp:contains_star
|
gptkb:M82
gptkb:NGC_3077
gptkb:NGC_2976
active star formation regions
about 2 solar masses per year
2.5 solar masses per year
|
gptkbp:diameter
|
90,000 light-years
approximately 90,000 light-years
90,000 light years
|
gptkbp:discovered_by
|
gptkb:Johann_Elert_Bode
|
gptkbp:discovery_year
|
1774
|
gptkbp:distance_from_earth
|
12 million light-years
approximately 12 million light-years
12 million light years
|
gptkbp:exhibition
|
gptkb:Messier_catalog
|
gptkbp:has_a_central_bulge
|
yes
|
gptkbp:has_a_halo
|
yes
|
gptkbp:has_a_morphological_type
|
SA(s)bc
|
gptkbp:has_a_satellite_galaxy
|
gptkb:M82
|
gptkbp:has_a_star_formation_rate
|
approximately 2.5 solar masses per year
|
gptkbp:has_a_surface_brightness
|
approximately 22.5 mag/arcsec²
|
gptkbp:has_been_mapped_in
|
3 D space.
|
gptkbp:has_color
|
B-V = 0.9
U-B = -0.2
B-V: 0.9
|
gptkbp:has_companion
|
gptkb:M82
|
gptkbp:has_historical_significance
|
one of the first galaxies discovered
|
gptkbp:has_relationship_with
|
gptkb:M82
gptkb:NGC_3077
|
gptkbp:has_single
|
globular clusters.
|
gptkbp:has_spectral_type
|
SAB(rs)bc
Sbc
|
gptkbp:has_supernova
|
at its center
SN 1993 J
M81*
|
https://www.w3.org/2000/01/rdf-schema#label
|
M81
|
gptkbp:included
|
NGC catalog
IC catalog
|
gptkbp:interacts_with
|
gptkb:M82
|
gptkbp:is_a_key_object_in_studies_of
|
dark matter.
|
gptkbp:is_a_member_of
|
the Local Supercluster
|
gptkbp:is_a_prominent_feature_in_studies_of
|
the local universe.
|
gptkbp:is_a_significant_object_in_studies_of
|
galactic dynamics.
galaxy formation.
|
gptkbp:is_a_source_of
|
cosmic rays.
|
gptkbp:is_a_subject_of
|
gptkb:cosmology
astrophysics.
|
gptkbp:is_a_subject_of_interest_in_studies_of
|
stellar populations.
galaxy interactions.
galaxy morphology.
|
gptkbp:is_approximately
|
12 million light-years away from Earth.
|
gptkbp:is_associated_with
|
gptkb:the_Great_Bear_constellation
Hubble Space Telescope observations
various astronomical phenomena.
|
gptkbp:is_cited_in
|
galactic structure.
|
gptkbp:is_home_to
|
many globular clusters
various types of nebulae
young star clusters
old stellar populations
|
gptkbp:is_known_for
|
its bright core
its bright nucleus
its interaction with M82
its prominent spiral structure
|
gptkbp:is_known_to
|
active star formation.
|
gptkbp:is_located_at
|
Declination +69° 3' 55''
Right Ascension 9h 55m 33.1s
|
gptkbp:is_located_in
|
Ursa Major constellation
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
various wavelengths
X-ray wavelengths
radio wavelengths
infrared wavelengths
|
gptkbp:is_often_compared_to
|
the Milky Way.
|
gptkbp:is_often_discussed_in
|
galaxy clusters.
|
gptkbp:is_often_included_in_studies_of
|
galaxy evolution.
galaxy morphology.
|
gptkbp:is_often_referenced_in
|
other galaxies.
|
gptkbp:is_often_referenced_in_studies_of
|
galaxy evolution.
|
gptkbp:is_often_used_in_simulations_of
|
galaxy formation.
|
gptkbp:is_part_of
|
gptkb:Laniakea_Supercluster
gptkb:M81_Group
gptkb:M81_group_of_galaxies
gptkb:Messier_catalog
gptkb:Local_Group_of_galaxies
the Virgo Supercluster
the Local Supercluster
the Messier 81 Group
Hubble Space Telescope Legacy Archive.
|
gptkbp:is_part_of_a_group_that_includes
|
gptkb:M82
|
gptkbp:is_part_of_a_larger_structure_known_as
|
the M81 Group.
|
gptkbp:is_prominent_in
|
a bar structure
|
gptkbp:is_studied_for
|
galaxy formation
galaxy formation and evolution
galaxy evolution
its active galactic nucleus
|
gptkbp:is_studied_in
|
gptkb:M82
gptkb:Hubble_Space_Telescope
gptkb:astronomy
galactic dynamics.
|
gptkbp:is_visible_from
|
yes
northern hemisphere
naked eye under dark skies
with small telescopes
Earth with binoculars
|
gptkbp:known_as
|
gptkb:Bode's_Galaxy
|
gptkbp:lighting
|
21.5 mag/arcsec²
|
gptkbp:located_in
|
gptkb:Ursa_Major
Ursa Major constellation
|
gptkbp:mass
|
1.5 x 10^11 solar masses
approximately 100 billion solar masses
about 100 billion solar masses
|
gptkbp:notable_examples
|
a nearby galaxy.
|
gptkbp:notable_feature
|
star formation regions
spiral arms
bar structure
prominent spiral arms
the night sky.
bright nucleus
well-defined spiral arms
|
gptkbp:notable_figures
|
interstellar dust
H II regions.
|
gptkbp:notable_galaxies
|
gptkb:NGC_3031
gptkb:NGC_3077
gptkb:NGC_2976
SA(s)bc
SBbc
|
gptkbp:notable_nominees
|
future astronomical observations.
|
gptkbp:often_includes
|
astronomical catalogs.
|
gptkbp:orbit_type
|
gptkb:M82
gptkb:NGC_3077
gptkb:NGC_2976
|
gptkbp:part_of
|
gptkb:M81_Group
|
gptkbp:performance
|
other spiral galaxies.
|
gptkbp:photography
|
amateur astronomers
amateur astronomers.
|
gptkbp:redshift
|
0.0005
0.0023
0.0033
0.0007
|
gptkbp:research_focus
|
galaxy interactions.
|
gptkbp:scientific_classification
|
SA(s)bc
a spiral galaxy
|
gptkbp:speed
|
approximately 200 km/s.
|
gptkbp:targets
|
galaxy formation studies
deep-sky observations.
|
gptkbp:type
|
gptkb:SAB_spiral_galaxy
gptkb:spiral_galaxy
|
gptkbp:bfsParent
|
gptkb:Draco
|
gptkbp:bfsLayer
|
4
|