WD 1235+083

All names: USNO-A2.0 0975-07000695, GALEX J123819.2+080309, SDSS J123819.28+080309.7, SDSS J123819.28+080309.70, 2MASS J12381926+0803094, WD 1235+083, SDSS J123819.28+080309.6, LBQS 1235+0819, TIC 399118733, Gaia EDR3 3710390365473650944, Gaia DR3 3710390365473650944, Gaia DR2 3710390365473650944

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 38 19.26 (0.06) 12 38 19.28 12 38 19.26 (0.08) 12 38 19.26 12 38 19.29 (0.06) 12 38 19.20 12 38 19.28
Declination 08 03 09.97 (0.04) 08 03 09.71 08 03 09.96 (0.05) 08 03 09.97 08 03 09.69 (0.04) 08 03 06.84 08 03 09.69
Spectral type DBA DB DBA DB DBA DB
Effective temperature [K] 13980.0 13648.0 13690.0 14439.0 (31) 14533.0 (204) 14707.0 (60)
log(g) [cgs] 7.89 8.01 8.02 8.00 (0) 8.11 (0.02) 8.43 (0.04)
Mass [M] 0.526 0.595 0.598 0.651 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.2707
log(H/He) -5.335 -5.13 (0.1)
log(C/He)
log(Ca/He) <-8.84
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 9.75 (0.07) 9.69 (0.09) 9.75 9.75 (0.07)
Distance [pc] 102.53 (0.7) 103.25 (1) 108.00 102.53 102.53 (0.7)
Composition He
Proper motion (right ascension) [mas/yr] -24.53322121 (0.07) -24.31364152 (0.2) -24.533 (0.07)
Proper motion (declination) [mas/yr] 17.35779348 (0.07) 17.23696547 (0.1) 17.358 (0.07)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.20 (0.3)
V magnitude
R magnitude 16.50 (0.3)
I magnitude
J magnitude 16.45 (0.1)
H magnitude
K magnitude
u magnitude 16.40 (0.006) 16.40 (0.006) 16.39 (0.02)
g magnitude 16.46 (0.004) 16.46 (0.004) 16.47 (0.02)
r magnitude 16.71 (0.005) 16.71 (0.005) 16.72 (0.02)
i magnitude 16.95 (0.006) 16.95 (0.006) 16.96 (0.01)
z magnitude 17.16 (0.01) 17.16 (0.01) 17.16 (0.02)
G magnitude 16.57 (0.002) 16.59 16.57 16.57 (0.003)
BP magnitude 16.52 (0.002) 16.49
RP magnitude 16.63 (0.006) 16.63
Pan g magnitude 16.49 (0.004)
Pan r magnitude 16.72 (0.004)
Pan i magnitude 16.96 (0.005)
Pan z magnitude 17.17 (0.005)
Pan y magnitude 17.32 (0.007)
E(B-V) 0.005

* 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.