WD J0747+2503

All names: WD 0744+251, Gaia DR3 867945098757961344, Gaia DR2 867945098757961344, SDSS J074724.61+250351.1, Gaia EDR3 867945098757961344

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Mukadam et al. 2004 Vincent et al. 2024 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 47 24.59 (0.2) 07 47 24.62 07 47 24.59 (0.2) 07 47 24.59 07 47 24.61 07 47 24.79 07 47 24.61
Declination 25 03 50.95 (0.1) 25 03 51.08 25 03 50.95 (0.2) 25 03 50.95 25 03 51.10 25 03 45.36 25 03 51.11
Spectral type DA DA DA DA_auto DA4.6 DA DA
Effective temperature [K] 10548.0 11230.0 (170) 11050.0 (110) 10666.0 (390) 11053.0 (114) 10973.0 (110)
log(g) [cgs] 7.37 7.98 (0.09) 7.93 (0.08) 7.37 (0.08) 7.93 (0.08) 7.94 (0.08)
Mass [M] 0.314 0.59 (0.05) 0.314 (0.04) 0.571 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.2798 0.4467
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] 3.43 (0.2) 3.50 (0.2) 3.43
Distance [pc] 291.30 (16) 285.77 (20) 291.30
Composition H H
Proper motion (right ascension) [mas/yr] -22.04851139 (0.2) -22.15337264 (0.4) -16.2
Proper motion (declination) [mas/yr] -9.844452549 (0.2) -9.570257349 (0.3) -187.4
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.84 (0.02) 18.91 (0.03) 18.83 18.89 (0.03)
g magnitude 18.36 (0.007) 18.39 18.37 (0.01) 18.39 18.35 (0.02)
r magnitude 18.50 (0.008) 18.53 (0.01) 18.52 (0.01)
i magnitude 18.65 (0.01) 18.68 (0.02) 18.66 (0.02)
z magnitude 18.89 (0.04) 18.88 (0.04) 18.87 (0.04)
G magnitude 18.42 (0.02) 18.45 18.42
BP magnitude 18.48 (0.02) 18.42
RP magnitude 18.41 (0.04) 18.41
Pan g magnitude 18.37 (0.007)
Pan r magnitude 18.50 (0.006)
Pan i magnitude 18.68 (0.009)
Pan z magnitude 18.89 (0.01)
Pan y magnitude 19.00 (0.03)
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.