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gptkbp:instanceOf
|
gptkb:open_cluster
|
|
gptkbp:age
|
about 12 billion years
|
|
gptkbp:alsoKnownAs
|
gptkb:Messier_15
|
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gptkbp:apparentMagnitude
|
6.2
|
|
gptkbp:bestViewedIn
|
autumn
|
|
gptkbp:bestViewedWith
|
small telescope
|
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gptkbp:catalogue
|
gptkb:Messier_Catalogue
|
|
gptkbp:constellation
|
gptkb:Pegasus
|
|
gptkbp:contains
|
gptkb:binary_stars
gptkb:neutron_stars
gptkb:white_dwarfs
gptkb:X-ray_binaries
gptkb:Pease_1
gptkb:RR_Lyrae_variables
Cepheid variables
pulsars
variable stars
X-ray sources
blue straggler stars
millisecond pulsars
possible intermediate-mass black hole
|
|
gptkbp:coreRadius
|
0.14 light-years
|
|
gptkbp:declination
|
+12° 10′ 0″
|
|
gptkbp:diameter
|
175 light-years
|
|
gptkbp:discoveredBy
|
gptkb:Jean-Dominique_Maraldi
|
|
gptkbp:discoveredIn
|
1746
|
|
gptkbp:distanceFromEarth
|
33,600 light-years
|
|
gptkbp:galacticLatitude
|
-27.31°
65.01°
|
|
gptkbp:hasConcept
|
core-collapsed
|
|
gptkbp:hasViewOf
|
gptkb:Northern_Hemisphere
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
M15
|
|
gptkbp:luminosity
|
13.1 mag/arcmin²
|
|
gptkbp:mass
|
~450,000 solar masses
|
|
gptkbp:metallicity
|
low
|
|
gptkbp:NGCNumber
|
gptkb:NGC_7078
|
|
gptkbp:notableFor
|
contains many variable stars
highly dense core
one of the densest globular clusters
first globular cluster found to contain a planetary nebula
|
|
gptkbp:partOf
|
gptkb:Milky_Way
|
|
gptkbp:Pease_1
|
gptkb:planetary_nebula
|
|
gptkbp:rating
|
over 100,000
|
|
gptkbp:rightAscension
|
21h 30m 0s
|
|
gptkbp:tidalRadius
|
21.5 arcminutes
|
|
gptkbp:bfsParent
|
gptkb:Oxford_Road,_Manchester
|
|
gptkbp:bfsLayer
|
5
|