Sirius B

GPTKB entity

Properties (49)
Predicate Object
gptkbp:instanceOf gptkb:Baronet
gptkbp:age approximately 120 million years
gptkbp:chemicalFormula hydrogen and helium
gptkbp:climate approximately 25,000 K
gptkbp:companionPlants gptkb:Sirius_A
gptkbp:crew approximately 2 hours
gptkbp:diameter approximately 0.0084 solar radii
gptkbp:established gptkb:Alfred_Winthrop_Lawson
gptkbp:hasArea companion star
gptkbp:hasHistory yes
gptkbp:hasRecognition 8.4
+11.0
gptkbp:hasTheme astronomers
https://www.w3.org/2000/01/rdf-schema#label Sirius B
gptkbp:isA stellar remnant
gptkbp:isAccessibleBy no
gptkbp:isAssociatedWith the history of astronomy
gptkbp:isConsidered a significant astronomical object
a benchmark for white dwarfs
gptkbp:isEngagedIn gptkb:Sirius_A
gptkbp:isKnownFor a high surface temperature
its white dwarf status
gptkbp:isLocatedIn Canis Major constellation
gptkbp:isNotedFor its historical significance in astronomy
its high density
gptkbp:isOftenAccompaniedBy the_closest_stars_to_Earth
gptkbp:isOftenMadeWith gptkb:Sirius_A
gptkbp:isPartOf gptkb:Sirius_star_system
yes
the Hertzsprung-Russell diagram
in astrophysics
a binary star system
the binary star classification system
gptkbp:isRelatedTo the study of white dwarfs
gptkbp:isServedBy telescopes
gptkbp:isStudiedIn stellar evolution
gptkbp:isUsedIn the Milky Way galaxy
stellar classification studies
the local stellar neighborhood
gptkbp:length approximately 8.6 light years
gptkbp:lighting approximately_0.001_times_that_of_the_Sun
gptkbp:mission no known exoplanets
gptkbp:orbitalInclination 0.6
50.1 years
63 degrees
gptkbp:releaseYear 1862
gptkbp:surface approximately 100,000 m/s²
gptkbp:type DA2
gptkbp:weight approximately 1 solar mass