SDSS J121241.50+432441.5

All names: Gaia DR2 1538352556944852480, Gaia EDR3 1538352556944852480, Gaia DR3 1538352556944852480, SDSS J121241.50+432441.5, GALEX J121241.4+432441, SDSS J121241.48+432441.6, WD 1210+436

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 12 41.47 (0.2) 12 12 41.50 12 12 41.48 (0.3) 12 12 41.51 (0.2) 12 12 41.50 12 12 41.59 12 12 41.50
Declination 43 24 41.71 (0.2) 43 24 41.53 43 24 41.71 (0.2) 43 24 41.55 (0.2) 43 24 41.51 43 24 37.08 43 24 41.50
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 16438.0 20588.0 (488) 20844.0 (491)
log(g) [cgs] 7.51 7.84 (0.09) 7.87 (0.09)
Mass [M☉] 0.383 0.561 (0.04)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.0716
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] 1.68 (0.3) 1.58 (0.4) 1.68 (0.3)
Distance [pc] 595.51 (99) 634.62 (164) 595.52 (99)
Composition H
Proper motion (right ascension) [mas/yr] -21.25331047 (0.3) -20.63804253 (0.4) -21.253 (0.3) -27.1
Proper motion (declination) [mas/yr] 10.16578816 (0.3) 10.00112917 (0.4) 10.166 (0.3) 9.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.25 (0.03) 19.25 (0.03) 19.27 (0.03) 19.27 19.28 (0.03)
g magnitude 19.17 (0.01) 19.17 (0.01) 19.21 (0.02) 19.21 19.20 (0.02)
r magnitude 19.56 (0.02) 19.56 (0.02) 19.58 (0.03) 19.58 19.58 (0.03)
i magnitude 19.82 (0.02) 19.82 (0.03) 19.83 (0.03) 19.83 19.83 (0.03)
z magnitude 20.20 (0.1) 20.20 (0.1) 20.20 (0.1) 20.20 20.18 (0.1)
G magnitude 19.39 (0.03) 19.44 19.39 (0.004)
BP magnitude 19.37 (0.03) 19.34
RP magnitude 19.59 (0.07) 19.57
Pan g magnitude 19.29 (0.05)
Pan r magnitude 19.61 (0.04)
Pan i magnitude 19.91 (0.02)
Pan z magnitude 20.15 (0.03)
Pan y magnitude 20.06 (0.2)
E(B-V) 0.017

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.