|
gptkbp:instanceOf
|
gptkb:star
white dwarf
|
|
gptkbp:age
|
7–12 billion years
|
|
gptkbp:alsoKnownAs
|
gptkb:Barnard's_Star
|
|
gptkbp:apparentMagnitude
|
9.5
|
|
gptkbp:catalogueNumber
|
gptkb:BD+04°3561a
gptkb:Gliese_699
gptkb:HIP_87937
gptkb:LHS_57
2MASS J17574849+0441405
|
|
gptkbp:constellation
|
gptkb:Ophiuchus
|
|
gptkbp:declination
|
+04° 41′ 36″
|
|
gptkbp:diameter
|
0.196 solar radii
|
|
gptkbp:discoveredBy
|
gptkb:E._E._Barnard
|
|
gptkbp:discoveredIn
|
1916
|
|
gptkbp:distanceFromEarth
|
5.96 light-years
|
|
gptkbp:hasPlanetCandidate
|
gptkb:Barnard's_Star_b
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
GJ 699
|
|
gptkbp:luminosity
|
0.0035 solar luminosities
|
|
gptkbp:mass
|
0.144 solar masses
|
|
gptkbp:metallicity
|
-0.39 [Fe/H]
|
|
gptkbp:nearestStarSystem
|
gptkb:Alpha_Centauri
|
|
gptkbp:notableFor
|
high proper motion
second closest star system to Sun
|
|
gptkbp:parallax
|
548.31 mas
|
|
gptkbp:properMotionRA
|
10.3 arcsec/year
|
|
gptkbp:radialVelocity
|
-110.6 km/s
|
|
gptkbp:rightAscension
|
17h 57m 48.5s
|
|
gptkbp:rotationPeriod
|
130 days
|
|
gptkbp:spectralType
|
M4.0Ve
|
|
gptkbp:temperature
|
3134 K
|
|
gptkbp:variableStar
|
gptkb:V2500_Ophiuchi
true
|
|
gptkbp:bfsParent
|
gptkb:Barnard's_Star
|
|
gptkbp:bfsLayer
|
7
|