M4

GPTKB entity

Statements (159)
Predicate Object
gptkbp:instance_of gptkb:military_vehicles
gptkb:series
gptkb:tank
gptkb:star
gptkbp:age approximately 13 billion years
approximately 12.2 billion years
gptkbp:apparent_magnitude 5.4
yes
6.4
5.8
gptkbp:armament 75 mm gun
gptkbp:armor 75 mm
gptkbp:associated_with gptkb:Scorpius_constellation
gptkbp:climbing_ability 60% slope
gptkbp:combat_history gptkb:Korean_War
gptkb:Vietnam_War
gptkb:World_War_II
gptkbp:composed_of metal-poor stars
gptkbp:contains millions of stars
gptkbp:contains_star yes
type II
gptkbp:coordinates l = 348.5°, b = -16.2°
gptkbp:country_of_origin gptkb:United_States
gptkbp:crew gptkb:5
gptkbp:declination -26° 31′ 32″
gptkbp:decommissioned gptkb:1973
gptkbp:depth 1.2 m
gptkbp:design_date gptkb:1940
gptkbp:discovered_by gptkb:Jean_Philippe_Loys_de_Chéseaux
gptkb:Jean-Philippe_Loys_de_Chéseaux
gptkbp:discovery_year gptkb:1764
1746
gptkbp:distance_from_earth approximately 7,200 light years
7,200 light years
gptkbp:engine gptkb:Continental_R975
gptkbp:engine_power 400 hp
gptkbp:exhibition gptkb:Messier_catalog
gptkb:NGC_6121
gptkbp:first_globular_cluster to be discovered to contain a pulsar
to be studied spectroscopically
gptkbp:fuel_capacity 400 liters
gptkbp:has a tidal radius of about 30 arcminutes
a core radius of about 1.5 arcminutes
a central concentration of stars
a half-light radius of about 3.5 arcminutes
a low density of stars in the outer regions
a metallicity of -1.16
gptkbp:has_color B-V = 0.9
gptkbp:has_function core collapse cluster
gptkbp:has_globular_cluster_radius about 75 light years
gptkbp:has_historical_significance one of the first globular clusters discovered
gptkbp:has_luminosity approximately 1.5 million solar luminosities
gptkbp:has_mass_function flat mass function
gptkbp:has_mechanic dynamically relaxed
gptkbp:has_observational_data Hubble Space Telescope images
gptkbp:has_radius about 4.5 arcminutes
about 2.5 arcminutes
gptkbp:has_spectral_type varies among stars
gptkbp:has_star_counts over 100,000 stars
gptkbp:has_stellar_density high density
gptkbp:has_supernova no
gptkbp:has_tidal_radius about 20 light years
gptkbp:has_xray_binaries yes
gptkbp:height 2.4 m
https://www.w3.org/2000/01/rdf-schema#label M4
gptkbp:introduced gptkb:1942
gptkbp:is visible to the naked eye
a popular target for amateur astronomers
a cluster that has been studied for its chemical composition
a source of X-ray binaries
a subject of numerous scientific papers
often studied in relation to stellar evolution
a part of the Local Group of galaxies
a part of the Milky Way's globular cluster system
a subject of historical astronomical observations
a target for astronomical studies
a cluster that has been analyzed for its stellar populations
a cluster that has been observed for its variable stars
a cluster that has been observed in various astronomical surveys
a cluster that has been used to study the formation of stars.
a cluster that has been studied using various wavelengths of light
a benchmark for stellar population studies
a candidate for studying dark matter effects
a cluster that has been imaged in deep-sky surveys
a cluster that has been observed for centuries
a cluster with a rich history in astronomy
a location for studying stellar dynamics
a member of the class of globular clusters
a potential site for studying primordial stars
a site for potential exoplanet discovery
a site of interest for gravitational wave studies
a site of stellar collisions
a source of information about the early universe
a subject of research in astrophysics
a target for Hubble Space Telescope observations
a cluster that has been used to study the dynamics of globular clusters
associated with the Galactic bulge
often compared to other globular clusters
often imaged by telescopes
one of the closest globular clusters to Earth
part of the Milky Way halo
a cluster that has been used to test theories of stellar evolution
a cluster that contributes to our understanding of galaxy formation
a location for potential future astronomical missions
gptkbp:is_part_of gptkb:Milky_Way_galaxy
gptkbp:length 6.27 m
gptkbp:lighting high
gptkbp:located_in gptkb:Scorpius_constellation
gptkb:Milky_Way
gptkb:Milky_Way_Galaxy
gptkbp:manufacturer gptkb:General_Motors
gptkbp:mass old stars
approximately 400,000 solar masses
gptkbp:metallicity -1.2
[ Fe/ H] = -1.0
gptkbp:nickname gptkb:Sherman
gptkbp:notable_feature contains a large number of binary stars
contains a pulsar (PSR B1620-26)
gptkbp:number_built over 49000
gptkbp:orbit_type no
gptkbp:originated_in evolved over billions of years
gptkbp:primary_role gptkb:starship
infantry support
gptkbp:produced_by gptkb:United_States
gptkbp:production_location gptkb:Canada
gptkb:United_Kingdom
gptkbp:production_years 1942-1945
gptkbp:range 160 km
gptkbp:research visible to the naked eye
gptkbp:research_importance study of stellar evolution
gptkbp:right_ascension 16h 23m 35.0s
gptkbp:service_frequency 1942-1957
gptkbp:ski_school 2.4 m
gptkbp:speed 40 km/h
gptkbp:successor gptkb:M1_Abrams
gptkb:M60_Patton
gptkbp:suspension vertical volute spring
gptkbp:transmission gptkb:manual
gptkbp:type gptkb:Population_II_cluster
gptkb:Population_II_star_cluster
gptkb:tank
gptkb:star
metal-poor globular cluster
gptkbp:used_by gptkb:Allied_forces
gptkb:United_States_Army
gptkbp:used_in gptkb:Cold_War
NATO operations
Middle East conflicts
gptkbp:variant gptkb:M4_A1
gptkb:M4_A2
gptkb:M4_A3
gptkb:M4_A4
gptkbp:weight 30 tons
gptkbp:width 3.2 m
gptkbp:bfsParent gptkb:crypt
gptkb:Enigma
gptkb:BMW
gptkb:M25_motorway
gptkbp:bfsLayer 4