SDSS J123151.81+613013.9

All names: GALEX J123151.9+613013, WD 1229+617, SDSS J123151.81+613013.7, Gaia DR3 1583131370577222400, Gaia DR2 1583131370577222400, SDSS J123151.81+613013.8, SDSS J123151.82+613013.7, SDSS J123151.81+613013.9, SDSS J123151.79+613013.9, Gaia EDR3 1583131370577222400

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 31 51.78 (0.09) 12 31 51.81 12 31 51.79 (0.1) 12 31 51.78 12 31 51.82 (0.09) 12 31 51.80 12 31 51.22 12 31 51.81
Declination 61 30 13.67 (0.09) 61 30 13.90 61 30 13.68 (0.1) 61 30 13.67 61 30 13.93 (0.09) 61 30 13.90 61 30 09.00 61 30 13.80
Spectral type DA DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 31928.0 (297) 21262.0 32320.0 (420) 34343.0 (3379) 31658.0 (358) 31838.0 (302)
log(g) [cgs] 7.79 (0.07) 7.28 7.69 (0.1) 7.79 (0.1) 7.63 (0.07) 7.69 (0.07)
Mass [M] 0.54 (0.03) 0.334 0.51 (0.04) 0.552 (0.07) 0.513 (0.03)
log(Luminosity) [L] -0.64 (0.05)
Cooling age [Gyr] 0.0071 (0.0003) 0.0175 0.0078
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] 1.64 (0.1) 1.71 (0.1) 1.64 1.64 (0.1)
Distance [pc] 610.56 (42) 583.65 (50) 610.56 610.58 (42)
Composition H H H
Proper motion (right ascension) [mas/yr] -15.91886838 (0.1) -16.10970526 (0.2) -15.919 (0.1) 3.1
Proper motion (declination) [mas/yr] -16.00266937 (0.1) -15.96362815 (0.2) -16.003 (0.1) -14.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.89 (0.01) 17.89 (0.01) 17.90 (0.01) 17.89 17.89 (0.02)
g magnitude 18.13 (0.006) 18.13 (0.006) 18.13 (0.02) 18.12 18.15 (0.02)
r magnitude 18.62 (0.009) 18.62 (0.009) 18.62 (0.02) 18.61 18.63 (0.02)
i magnitude 18.92 (0.02) 18.91 (0.01) 18.91 (0.02) 18.90 18.93 (0.02)
z magnitude 19.42 (0.09) 19.42 (0.09) 19.40 (0.09) 19.39 19.42 (0.08)
G magnitude 18.36 (0.01) 18.40 18.36 18.36 (0.003)
BP magnitude 18.22 (0.01) 18.18
RP magnitude 18.59 (0.02) 18.55
Pan g magnitude 18.21 (0.009)
Pan r magnitude 18.60 (0.006)
Pan i magnitude 18.93 (0.007)
Pan z magnitude 19.19 (0.02)
Pan y magnitude 19.34 (0.03)
E(B-V) 0.018

* 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.