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gptkbp:instance_of
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gptkb:star
|
|
gptkbp:bfsLayer
|
4
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gptkbp:bfsParent
|
gptkb:Canes_Venatici
|
|
gptkbp:age
|
approximately 8 billion years
|
|
gptkbp:apparent_magnitude
|
6.2
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|
gptkbp:associated_with
|
Milky Way halo
|
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gptkbp:contains
|
gptkb:RR_Lyrae_stars
gptkb:Cepheid_variables
gptkb:white_dwarfs
approximately 500,000
variable stars
main sequence stars
red giants
approximately 500,000 stars
blue stragglers
|
|
gptkbp:coordinates
|
RA 13h 42m 11.6s, Dec +28° 22′ 38″
|
|
gptkbp:declination
|
+28° 22′ 38″
|
|
gptkbp:depicted_in
|
best viewed in spring
|
|
gptkbp:diameter
|
about 518 light years
|
|
gptkbp:discovered_by
|
gptkb:Charles_Messier
|
|
gptkbp:distance
|
approximately 30,000 light years
33,000 light years
|
|
gptkbp:exhibition
|
gptkb:Messier_catalogue
gptkb:Messier_catalog
|
|
gptkbp:first_appearance
|
1764 by Charles Messier
|
|
gptkbp:has_color
|
0.9
B-V = 0.9
|
|
gptkbp:has_spectral_type
|
gptkb:G
G-type stars
|
|
gptkbp:historical_significance
|
one of the first globular clusters discovered
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Messier 3
|
|
gptkbp:image
|
Hubble Space Telescope image available
Hubble Space Telescope image
|
|
gptkbp:is_observed_in
|
gptkb:Northern_Hemisphere
Amateur astronomers
|
|
gptkbp:is_popular_in
|
gptkb:M3
|
|
gptkbp:lighting
|
one of the brightest globular clusters
|
|
gptkbp:located_in
|
gptkb:Virgo_constellation
gptkb:Milky_Way
|
|
gptkbp:location
|
gptkb:Canes_Venatici
|
|
gptkbp:mass
|
approximately 1.5 million solar masses
about 1 million solar masses
|
|
gptkbp:metallicity
|
[ Fe/ H] = -1.5
|
|
gptkbp:notable_feature
|
high concentration of stars
|
|
gptkbp:objective
|
gptkb:NGC_5272
|
|
gptkbp:orbital_period
|
approximately 200 million years
|
|
gptkbp:part_of
|
gptkb:Messier_series
|
|
gptkbp:population
|
high star density in the core
|
|
gptkbp:rank
|
third brightest globular cluster in the northern sky
|
|
gptkbp:research
|
telescopes
observed by William Herschel
|
|
gptkbp:right_ascension
|
13h 42m 11.6s
|
|
gptkbp:scientific_classification
|
gptkb:star
|
|
gptkbp:type
|
gptkb:Population_II_cluster
Population II
|
|
gptkbp:year_created
|
gptkb:1764
|