WD J0959+0238

All names: SDSS J095936.96+023828.4, SDSS J095936.96+023828.5, Gaia DR2 3836338421707173504, Gaia EDR3 3836338421707173504, Gaia DR3 3836338421707173504

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Stilism Tremblay et al. 2011 Castanheira et al. 2010 Vincent et al. 2024 Eisenstein et al. 2006 Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 09 59 36.97 (0.2) 09 59 36.96 09 59 36.97 (0.5) 09 59 36.97 09 59 36.96 09 59 36.96 09 59 36.96
Declination 02 38 28.40 (0.2) 02 38 28.49 02 38 28.41 (0.7) 02 38 28.40 02 38 28.50 02 38 28.52 02 38 28.54
Spectral type DA DA DA DA DA
Effective temperature [K] 12110.0 (150) 11830.0 12126.0 (598) 11834.0 (114) 11715.0 (112) 11923.0 (124)
log(g) [cgs] 8.11 (0.05) 8.06 8.05 (0.06) 8.05 (0.06) 8.20 (0.05) 8.10 (0.06)
Mass [M] 0.67 (0.03) 0.634 (0.05) 0.719 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.4365
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] 5.13 (0.2) 5.13
Distance [pc] 195.11 (7) 195.11
Composition H
Proper motion (right ascension) [mas/yr] 5.766184272 (0.2) 7.4 7.0
Proper motion (declination) [mas/yr] -7.535690037 (0.2) -8.6 -10.0
Variability VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 18.50
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.58 (0.02) 18.61 (0.03) 18.61 (0.03) 18.57 (0.02)
g magnitude 18.15 (0.007) 18.17 (0.02) 18.18 (0.02) 18.17 (0.02)
r magnitude 18.32 (0.008) 18.33 (0.03) 18.33 (0.03) 18.33 (0.02)
i magnitude 18.49 (0.01) 18.48 (0.02) 18.49 (0.02) 18.49 (0.02)
z magnitude 18.72 (0.04) 18.73 (0.04) 18.73 (0.04) 18.73 (0.04)
G magnitude 18.21 (0.02) 18.23 18.21
BP magnitude 18.22 (0.02) 18.25
RP magnitude 18.22 (0.03) 18.23
Pan g magnitude 18.13 (0.004)
Pan r magnitude 18.32 (0.004)
Pan i magnitude 18.52 (0.009)
Pan z magnitude 18.72 (0.01)
Pan y magnitude 18.91 (0.02)
E(B-V) 0.014
Period #1 [s] 194.7
Amplitude #1 [mma] 7.2
Period #2 [s] 283.4
Amplitude #2 [mma] 13.0

* 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.