Statements (26)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
white dwarf
|
| gptkbp:apparentMagnitude |
~20
|
| gptkbp:atmosphere |
methane
water vapor |
| gptkbp:catalogue |
gptkb:GJ_229_B
Gliese 229 B |
| gptkbp:constellation |
gptkb:Lepus
|
| gptkbp:declination |
-21° 51′ 52″
|
| gptkbp:diameter |
~1 Jupiter radius
|
| gptkbp:discoveredBy |
Nakajima et al.
|
| gptkbp:discoveredIn |
1995
|
| gptkbp:distanceFromEarth |
~19 light-years
|
| gptkbp:eccentricity |
0.69
|
| gptkbp:hostedBy |
Gliese 229 A
|
| https://www.w3.org/2000/01/rdf-schema#label |
GJ 229 B
|
| gptkbp:locatedInSystem |
gptkb:Gliese_229
|
| gptkbp:mass |
~0.02 solar masses
~20 Jupiter masses |
| gptkbp:notableFor |
first unambiguous detection of a brown dwarf
|
| gptkbp:orbitType |
~1200 years
|
| gptkbp:rightAscension |
06h 10m 34.6s
|
| gptkbp:semiMajorAxis |
44 AU
|
| gptkbp:spectralType |
gptkb:T7
|
| gptkbp:temperature |
~950 K
|
| gptkbp:bfsParent |
gptkb:GJ_229
|
| gptkbp:bfsLayer |
8
|