|
gptkbp:instance_of
|
gptkb:star
|
|
gptkbp:age
|
about 13 billion years
|
|
gptkbp:apparent_magnitude
|
9.0
|
|
gptkbp:contains_star
|
millions of stars
|
|
gptkbp:declination
|
-30° 28′ 00″
|
|
gptkbp:diameter
|
about 150 light years
|
|
gptkbp:discovered_by
|
gptkb:Charles_Messier
|
|
gptkbp:discovery_year
|
1778
|
|
gptkbp:distance_from_earth
|
about 87,000 light years
|
|
gptkbp:exhibition
|
gptkb:Messier_catalog
various astronomical databases
|
|
gptkbp:has_color
|
B-V = 0.85
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Messier 54
|
|
gptkbp:included
|
astronomical catalogs
|
|
gptkbp:investigates
|
its formation history
|
|
gptkbp:is_a
|
gptkb:star
|
|
gptkbp:is_analyzed_in
|
astrophysicists
stellar populations
|
|
gptkbp:is_associated_with
|
dark matter halo
|
|
gptkbp:is_considered_as
|
a target for observational studies
|
|
gptkbp:is_examined_in
|
dynamics of globular clusters
|
|
gptkbp:is_explored_in
|
gptkb:astronomy
|
|
gptkbp:is_found_in
|
Galactic halo
|
|
gptkbp:is_known_for
|
its dense core
|
|
gptkbp:is_located_near
|
gptkb:Sagittarius_Dwarf_Spheroidal_Galaxy
|
|
gptkbp:is_notable_for
|
its high concentration of stars
|
|
gptkbp:is_noted_for
|
its unique position in the sky
its gravitational interactions with nearby galaxies
|
|
gptkbp:is_observed_in
|
gptkb:Hubble_Space_Telescope
infrared wavelengths
optical telescopes
various wavelengths of light.
|
|
gptkbp:is_part_of
|
gptkb:Sagittarius_constellation
gptkb:Milky_Way's_satellite_galaxies
the Local Group of galaxies
Sagittarius constellation group
|
|
gptkbp:is_related_to
|
other globular clusters
|
|
gptkbp:is_studied_for
|
its chemical composition
|
|
gptkbp:is_studied_in
|
astrophysics
|
|
gptkbp:is_used_in
|
cosmological simulations
stellar evolution studies
|
|
gptkbp:is_visible_from
|
with binoculars
summer months in the Northern Hemisphere
|
|
gptkbp:known_as
|
NGC 6715
|
|
gptkbp:located_in
|
constellation Sagittarius
|
|
gptkbp:mass
|
about 1.5 million solar masses
|
|
gptkbp:metallicity
|
[ Fe/ H] = -1.0
|
|
gptkbp:part_of
|
gptkb:Milky_Way_Galaxy
|
|
gptkbp:photography
|
amateur astronomers
|
|
gptkbp:right_ascension
|
18h 55m 03.0s
|
|
gptkbp:scientific_classification
|
type II globular cluster
|
|
gptkbp:type
|
GC (Globular Cluster)
|
|
gptkbp:bfsParent
|
gptkb:Messier_series
|
|
gptkbp:bfsLayer
|
7
|