|
gptkbp:instanceOf
|
gptkb:galaxy
|
|
gptkbp:alsoKnownAs
|
gptkb:Pinwheel_Galaxy
|
|
gptkbp:angularSize
|
28.8′ × 26.9′
|
|
gptkbp:apparentMagnitude
|
7.86
|
|
gptkbp:catalogueNumber
|
gptkb:M101
gptkb:NGC_5457
|
|
gptkbp:declination
|
+54° 20′ 57″
|
|
gptkbp:diameter
|
170,000 light-years
|
|
gptkbp:discoveredBy
|
gptkb:Pierre_Méchain
|
|
gptkbp:discoveredIn
|
1781
|
|
gptkbp:distanceFromEarth
|
21 million light-years
|
|
gptkbp:hasSupernova
|
gptkb:SN_1909A
gptkb:SN_1951H
gptkb:SN_1970G
gptkb:SN_2011fe
gptkb:SN_2023ixf
|
|
gptkbp:inclination
|
18°
|
|
gptkbp:locatedIn
|
constellation Ursa Major
|
|
gptkbp:luminosity
|
14.0 mag/arcmin²
|
|
gptkbp:mass
|
~100 billion solar masses
|
|
gptkbp:memberOf
|
gptkb:M101_Group
|
|
gptkbp:notableFeature
|
large H II regions
asymmetric spiral arms
|
|
gptkbp:partOf
|
gptkb:Virgo_Supercluster
|
|
gptkbp:rating
|
~1 trillion
|
|
gptkbp:redshift
|
0.000804
|
|
gptkbp:rightAscension
|
14h 03m 12.6s
|
|
gptkbp:type
|
SAB(rs)cd
|
|
gptkbp:bfsParent
|
gptkb:Ursa_Major
gptkb:Pinwheel_Galaxy
gptkb:SN_2011fe
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Messier 101
|