|
gptkbp:instance_of
|
gptkb:galaxy
|
|
gptkbp:bfsLayer
|
5
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gptkbp:bfsParent
|
gptkb:M81
gptkb:Messier_81
gptkb:Messier_82
gptkb:NGC_3034
|
|
gptkbp:apparent_magnitude
|
6.9
|
|
gptkbp:body_style
|
gptkb:physicist
|
|
gptkbp:contains
|
gptkb:NGC_3034
approximately 1.5 solar masses per year
|
|
gptkbp:depicted_in
|
northern hemisphere
with small telescopes
|
|
gptkbp:diameter
|
approximately 90,000 light-years
|
|
gptkbp:discovered_by
|
gptkb:Johann_Elert_Bode
|
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gptkbp:distance
|
approximately 12 million light-years
|
|
gptkbp:exhibition
|
gptkb:New_General_Catalogue
gptkb:Messier_Catalogue
|
|
gptkbp:foot
|
well-defined spiral arms
|
|
gptkbp:has_color
|
B-V = 0.9
|
|
gptkbp:has_luminosity
|
SN 1993 J
|
|
gptkbp:has_spectral_type
|
Sbc
|
|
gptkbp:historical_significance
|
one of the first galaxies to be studied in detail
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
NGC 3031
|
|
gptkbp:includes
|
various astronomical surveys
|
|
gptkbp:is_associated_with
|
X-ray emissions
starburst activity.
|
|
gptkbp:is_known_for
|
gptkb:Messier_81
|
|
gptkbp:is_observed_in
|
radio wavelengths
ground-based telescopes
|
|
gptkbp:is_part_of
|
gptkb:M81_Group
gptkb:Hubble's_Tuning_Fork_diagram
gptkb:M81_constellation_group
gptkb:Local_Group_of_galaxies
|
|
gptkbp:is_studied_in
|
gptkb:observatory
galaxy formation and evolution
|
|
gptkbp:is_used_for
|
a reference point for other galaxies
|
|
gptkbp:lighting
|
approximately 22.5 mag/arcsec²
|
|
gptkbp:located_in
|
constellation Ursa Major
Right Ascension 9h 55m 33.2s
Declination +69° 3' 55''
|
|
gptkbp:mass
|
approximately 1.5 billion solar masses
|
|
gptkbp:notable_feature
|
large central bulge
|
|
gptkbp:notable_for
|
its bright nucleus
|
|
gptkbp:notable_models
|
SA(s)ab
|
|
gptkbp:photography
|
gptkb:Hubble_Space_Telescope
|
|
gptkbp:redshift
|
0.0005
|
|
gptkbp:type
|
gptkb:galaxy
|
|
gptkbp:year_created
|
1774
|