|
gptkbp:instance_of
|
gptkb:galaxy
|
|
gptkbp:bfsLayer
|
5
|
|
gptkbp:bfsParent
|
gptkb:Pinwheel_Galaxy
gptkb:M101_howitzer
|
|
gptkbp:apparent_magnitude
|
7.9
|
|
gptkbp:contains
|
gptkb:M101-3
gptkb:M101-2
M101-1
M101-4
M101-5
approximately 100 billion
|
|
gptkbp:diameter
|
170,000 light years
|
|
gptkbp:discovered_by
|
gptkb:Pierre_Méchain
|
|
gptkbp:distance
|
21 million light years
|
|
gptkbp:has_ahistory_of
|
gptkb:NGC_5461
gptkb:NGC_5462
gptkb:NGC_5471
|
|
gptkbp:has_color
|
B-V = 0.65
U-B = -0.10
I-Z = 0.20
R-I = 0.30
V-R = 0.40
|
|
gptkbp:has_luminosity
|
gptkb:SN_2020jfo
gptkb:SN_2014_C
gptkb:SN_2011dh
|
|
gptkbp:has_spectral_type
|
SAB(rs)cd
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
M101
|
|
gptkbp:is_known_for
|
gptkb:Pinwheel_Galaxy
|
|
gptkbp:is_part_of
|
gptkb:Local_Group
gptkb:Virgo_Supercluster
|
|
gptkbp:lighting
|
23.5 mag/arcsec²
|
|
gptkbp:located_in
|
gptkb:Ursa_Major
|
|
gptkbp:mission
|
gptkb:NGC_5474
gptkb:NGC_5585
|
|
gptkbp:notable_feature
|
prominent dust lanes
multiple star clusters
bright nucleus
interacting with NGC 5474
large spiral arms
|
|
gptkbp:notable_for
|
observed by Hubble Space Telescope
observed by Chandra X-ray Observatory
observed by Keck Observatory
observed by Spitzer Space Telescope
observed by Very Large Array
|
|
gptkbp:redshift
|
0.0023
|
|
gptkbp:type
|
gptkb:galaxy
|
|
gptkbp:year_created
|
1781
|