|
gptkbp:instanceOf
|
white dwarf
|
|
gptkbp:apparentMagnitude
|
11.01
9.52
|
|
gptkbp:catalogueNumber
|
gptkb:Gliese_166B
gptkb:HD_26965B
gptkb:HIP_19849B
gptkb:HR_1325B
gptkb:LHS_22
|
|
gptkbp:component
|
gptkb:40_Eridani_BC_binary
|
|
gptkbp:declination
|
-07° 39′ 17″
|
|
gptkbp:diameter
|
0.013 solar radii
|
|
gptkbp:discoveredBy
|
gptkb:William_Herschel
|
|
gptkbp:discoveredIn
|
1783
|
|
gptkbp:distanceFromEarth
|
16.3 light-years
|
|
gptkbp:hasCompanion
|
gptkb:40_Eridani_A
gptkb:40_Eridani_C
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
40 Eridani B
|
|
gptkbp:locatedIn
|
constellation Eridanus
|
|
gptkbp:mass
|
0.573 solar masses
|
|
gptkbp:metallicity
|
[Fe/H] = -0.3
|
|
gptkbp:notableFor
|
first white dwarf discovered
|
|
gptkbp:orbitType
|
252 years
|
|
gptkbp:otherName
|
gptkb:Omicron2_Eridani_B
|
|
gptkbp:parallax
|
198.24 mas
|
|
gptkbp:partOf
|
gptkb:40_Eridani_triple_star_system
|
|
gptkbp:properMotionRA
|
-2239.32 mas/yr (RA), -341.63 mas/yr (Dec)
|
|
gptkbp:rightAscension
|
04h 15m 21.5s
|
|
gptkbp:rotationPeriod
|
~1.15 days
|
|
gptkbp:spectralType
|
DA2.9
|
|
gptkbp:surfaceGravity
|
log g = 7.97
|
|
gptkbp:temperature
|
16,500 K
|
|
gptkbp:bfsParent
|
gptkb:white_dwarf_stars
|
|
gptkbp:bfsLayer
|
5
|