|
gptkbp:instanceOf
|
stellar classification
|
|
gptkbp:color
|
yellow
|
|
gptkbp:commonSubtypes
|
gptkb:G5
gptkb:G8
gptkb:G2
G0
|
|
gptkbp:coreProcess
|
hydrogen fusion
|
|
gptkbp:discoveredBy
|
gptkb:Angelo_Secchi_(classification)
|
|
gptkbp:distanceFromEarth
|
varies
|
|
gptkbp:endState
|
white dwarf
|
|
gptkbp:evolutionaryStage
|
gptkb:giant
gptkb:main_sequence
|
|
gptkbp:exampleInSolarSystem
|
Sun
|
|
gptkbp:fate
|
white dwarf
|
|
gptkbp:firstClassified
|
19th century
|
|
gptkbp:fractionOfMilkyWayStars
|
about 7.5%
|
|
gptkbp:frequency
|
molecular bands (weak)
neutral metals
strong ionized calcium
|
|
gptkbp:habitableZone
|
exists
|
|
gptkbp:hostPlanets
|
yes
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
G-type stars
|
|
gptkbp:hydrogenFusion
|
proton-proton chain
|
|
gptkbp:lifespan
|
~10 billion years
|
|
gptkbp:location
|
gptkb:Milky_Way
other galaxies
|
|
gptkbp:luminosity
|
varies
V (main sequence)
|
|
gptkbp:magneticActivity
|
varies
|
|
gptkbp:mainSequenceDuration
|
~10 billion years
|
|
gptkbp:mainSequenceExample
|
Sun
|
|
gptkbp:metallicity
|
varies
|
|
gptkbp:notableExample
|
gptkb:Kepler-22
gptkb:HD_209458
gptkb:Alpha_Centauri_A
gptkb:Tau_Ceti
|
|
gptkbp:range
|
0.84–1.15 solar masses
0.96–1.15 solar radii
|
|
gptkbp:rotationPeriod
|
varies
|
|
gptkbp:solarAnalogs
|
yes
|
|
gptkbp:solarTwin
|
rare
|
|
gptkbp:spectralType
|
G
|
|
gptkbp:surfaceGravity
|
~4.4 (log g)
|
|
gptkbp:temperature
|
5,300–6,000 K
|
|
gptkbp:UVEmission
|
moderate
|
|
gptkbp:進化
|
become red giants
|
|
gptkbp:bfsParent
|
gptkb:Population_I
gptkb:main_sequence
|
|
gptkbp:bfsLayer
|
6
|