SDSS J203710.12-004442.4

All names: GALEX J203710.1-004442, Gaia DR3 4226519192479327744, SDSS J203710.12-004442.5, Gaia DR2 4226519192479327744, WD 2034-009, SDSS J203710.12-004442.4, Gaia EDR3 4226519192479327744

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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 20 37 10.20 (0.1) 20 37 10.12 20 37 10.20 (0.1) 20 37 10.20 20 37 10.11 (0.1) 20 37 10.12 20 37 09.53 20 37 10.12
Declination -00 44 42.82 (0.07) -00 44 42.46 -00 44 42.80 (0.1) -00 44 42.82 -00 44 42.42 (0.07) -00 44 42.45 -00 44 35.52 -00 44 42.48
Spectral type DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 7966.0 8150.0 (80) 7982.0 (134) 8386.0 (42) 8023.0 (42)
log(g) [cgs] 7.89 8.08 (0.1) 7.92 (0.04) 8.32 (0.09) 7.92 (0.08)
Mass [M] 0.531 0.64 (0.07) 0.546 (0.03) 0.553 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.9329 1.1749
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] 9.29 (0.1) 9.16 (0.2) 9.29 9.29 (0.1)
Distance [pc] 107.60 (2) 109.14 (2) 107.60 107.60 (2)
Composition H H
Proper motion (right ascension) [mas/yr] 86.51104544 (0.1) 86.59647761 (0.3) 86.511 (0.1) 89.5
Proper motion (declination) [mas/yr] -25.01665552 (0.1) -24.95924978 (0.2) -25.017 (0.1) -26.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude 17.50 (0.07)
K magnitude 17.50 (0.1)
u magnitude 18.53 (0.02) 18.53 (0.02) 18.55 (0.02) 18.55 18.55 (0.02)
g magnitude 18.09 (0.007) 18.09 (0.007) 18.11 (0.01) 18.11 18.12 (0.01)
r magnitude 18.03 (0.008) 18.03 (0.008) 18.06 (0.01) 18.06 18.06 (0.01)
i magnitude 18.05 (0.009) 18.05 (0.009) 18.06 (0.01) 18.07 18.05 (0.01)
z magnitude 18.12 (0.02) 18.12 (0.02) 18.14 (0.02) 18.15 18.11 (0.02)
G magnitude 17.99 (0.009) 18.01 17.99 17.99 (0.003)
BP magnitude 18.14 (0.009) 18.13
RP magnitude 17.76 (0.01) 17.76
Pan g magnitude 18.11 (0.005)
Pan r magnitude 18.04 (0.004)
Pan i magnitude 18.09 (0.005)
Pan z magnitude 18.16 (0.01)
Pan y magnitude 18.23 (0.02)
E(B-V) 0.014

* 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.