HE 1252-0202

All names: LAMOST J125458.07-021838.3, SDSS J125458.07-021838.3, WDS J12550-0219A, PSO J125458.068-021838.280, Gaia DR2 3682458814461982592, SDSS J125458.07-021838.34

Parameter Unit MWDD H Pan-STARRS DR1 Gaia DR2 Kepler et al. 2015 SDSS DR10 Simbad
Right ascension 12 54 58.07 (0.1) 12 54 58.08 12 54 58.06
Declination -02 18 38.57 (0.08) -02 18 37.79 -02 18 37.91
Spectral type DA DA DA3.0
Effective temperature [K] 15123.0 16939.0 (49)
log(g) [cgs] 7.93 8.10 (0.01)
Mass [M☉] 0.5710000000000001 0.669 (0.005)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.1706
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 8.14 (0.1)
Distance [pc] 122.83 (2)
Composition H
Proper motion (right ascension) [mas/yr] -8.6953402793 (0.2) -10.0
Proper motion (declination) [mas/yr] -53.466264729 (0.1) -52.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.80
V magnitude 16.30
R magnitude 17.30
I magnitude
J magnitude 16.91
H magnitude
K magnitude
u magnitude 16.70 (0.01) 16.71 (0.007) 16.71
g magnitude 16.48 (0.02) 16.46 (0.004) 16.46
r magnitude 16.77 (0.01) 16.77 (0.004) 16.77
i magnitude 17.02 (0.02) 17.03 (0.005) 17.02
z magnitude 17.29 (0.02) 17.29 (0.02) 17.29
G magnitude 16.65
BP magnitude 16.57
RP magnitude 16.77
Pan g magnitude 16.51 (0.005)
Pan r magnitude 16.78 (0.005)
Pan i magnitude 17.06 (0.003)
Pan z magnitude 17.30 (0.004)
Pan y magnitude 17.47 (0.01)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.