|
gptkbp:instanceOf
|
galaxy
|
|
gptkbp:contains
|
H II regions
|
|
gptkbp:diameter
|
170,000 light years
|
|
gptkbp:established
|
gptkb:Pierre_Méchain
|
|
gptkbp:features
|
multiple spiral arms
|
|
gptkbp:hasAlumni
|
prominent dust lanes
|
|
gptkbp:hasCharacter
|
gptkb:SN_2004dj
gptkb:SN_1994I
gptkb:SN_2011dh
barred structure
|
|
gptkbp:hasExhibition
|
NGC 5474
NGC 5455
NGC 5461
|
|
gptkbp:hasFacilities
|
1.5 x 10^11 solar masses
|
|
gptkbp:hasFacility
|
200 km/s
|
|
gptkbp:hasGoals
|
active galactic nucleus
|
|
gptkbp:hasOccupation
|
1.5 solar masses/year
|
|
gptkbp:hasPersonnel
|
1-2 billion years
|
|
gptkbp:hasRecognition
|
7.86
|
|
gptkbp:hasRelatedPatent
|
SAB(rs)cd
|
|
gptkbp:hasSubsidiary
|
gptkb:M101-3
M101-1
M101-2
|
|
gptkbp:hasTheme
|
0.0022
|
|
gptkbp:hasVisitorCenter
|
gptkb:M101-3
M101-1
M101-2
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Messier 101
|
|
gptkbp:isAccessibleBy
|
gptkb:Northern_Hemisphere
|
|
gptkbp:isFiledIn
|
B-V = 0.65
R-I = 0.40
U-B = -0.10
V-I = 0.75
|
|
gptkbp:isPartOf
|
gptkb:M101_Group
Messier catalog
|
|
gptkbp:isStudiedIn
|
cosmology
astronomy
astrophysics
|
|
gptkbp:length
|
21 million light years
|
|
gptkbp:lighting
|
23.5 mag/arcsec²
|
|
gptkbp:locatedIn
|
Ursa Major
|
|
gptkbp:previouslyKnownAs
|
NGC 5457
|
|
gptkbp:region
|
gptkb:M101-3
M101-1
M101-2
|
|
gptkbp:releaseYear
|
1781
|
|
gptkbp:resolution
|
0.5 stars/arcmin²
|
|
gptkbp:type
|
spiral galaxy
|
|
gptkbp:visitedBy
|
gptkb:Spitzer_Space_Telescope
gptkb:Chandra_X-ray_Observatory
gptkb:Hubble_Space_Telescope
|