|
gptkbp:instance_of
|
gptkb:star
|
|
gptkbp:age
|
approximately 12 billion years
approximately 13.2 billion years
|
|
gptkbp:apparent_magnitude
|
6.2
|
|
gptkbp:contains
|
millisecond pulsars
millions of stars
|
|
gptkbp:contains_star
|
yes
|
|
gptkbp:core_radius
|
0.5 arcminutes
|
|
gptkbp:declination
|
+12° 10′ 01″
|
|
gptkbp:diameter
|
approximately 220 light years
175 light years
|
|
gptkbp:discovered_by
|
gptkb:Jean-Dominique_Maraldi
|
|
gptkbp:discovery_year
|
1746
|
|
gptkbp:distance_from_earth
|
33,600 light years
|
|
gptkbp:exhibition
|
gptkb:New_General_Catalogue
|
|
gptkbp:first_appearance
|
1746
|
|
gptkbp:first_globular_cluster
|
to be identified as such
|
|
gptkbp:has_black_holes
|
yes
|
|
gptkbp:has_spectral_type
|
gptkb:G
various
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
M15
|
|
gptkbp:is_associated_with
|
the Milky Way's globular cluster population
|
|
gptkbp:is_considered
|
one of the oldest globular clusters
|
|
gptkbp:is_home_to
|
many blue stragglers
|
|
gptkbp:is_located_at
|
gptkb:Galactic_Halo
|
|
gptkbp:is_notable_for
|
its dense core
|
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
various telescopes
|
|
gptkbp:is_part_of
|
gptkb:Messier_catalog
gptkb:Milky_Way_Galaxy
Hubble Space Telescope observations
|
|
gptkbp:is_popular_in
|
amateur astronomy
|
|
gptkbp:is_studied_in
|
gptkb:astronomy
|
|
gptkbp:is_visible_from
|
gptkb:Northern_Hemisphere
gptkb:sunglasses
|
|
gptkbp:known_as
|
gptkb:NGC_7078
|
|
gptkbp:located_in
|
constellation Pegasus
|
|
gptkbp:mass
|
approximately 100,000 stars
approximately 400,000 solar masses
approximately 500,000 solar masses
|
|
gptkbp:metallicity
|
[ Fe/ H] = -2.17
|
|
gptkbp:notable_feature
|
contains a planetary nebula
|
|
gptkbp:orbit_type
|
yes
|
|
gptkbp:right_ascension
|
21h 29m 58.6s
|
|
gptkbp:scientific_classification
|
gptkb:star
|
|
gptkbp:type
|
gptkb:star
Population I globular cluster
|
|
gptkbp:bfsParent
|
gptkb:Pegasus
|
|
gptkbp:bfsLayer
|
4
|