All names: Gaia EDR3 800976770385043712, WD 0937+394, Gaia DR3 800976770385043712, Gaia DR2 800976766087911296, SDSS J094031.43+391213.0, SDSS J094031.43+391212.9, GALEX J094031.4+391212
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 | 09 40 31.46 (0.2) | 09 40 31.43 | 09 40 31.46 (0.2) | 09 40 31.46 | 09 40 31.43 (0.2) | 09 40 31.43 | 09 40 31.32 | 09 40 31.43 | ||||||
Declination | 39 12 12.52 (0.1) | 39 12 12.98 | 39 12 12.54 (0.2) | 39 12 12.52 | 39 12 13.03 (0.1) | 39 12 12.98 | 39 12 09.72 | 39 12 12.99 | ||||||
Spectral type | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
Effective temperature | [K] | 10415.0 | 10450.0 (130) | 9837.0 (342) | 10366.0 (83) | 10288.0 (90) | ||||||||
log(g) | [cgs] | 8.06 | 8.27 (0.1) | 7.93 (0.08) | 8.25 (0.09) | 8.23 (0.1) | ||||||||
Mass | [M☉] | 0.635 | 0.77 (0.07) | 0.56 (0.06) | 0.735 (0.06) | |||||||||
log(Luminosity) | [L☉] | |||||||||||||
Cooling age | [Gyr] | 0.5855 | 0.8318 | |||||||||||
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] | 4.49 (0.2) | 4.48 (0.3) | 4.49 | 4.49 (0.2) | |||||||||
Distance | [pc] | 222.75 (10) | 223.15 (14) | 222.75 | 222.75 (10) | |||||||||
Composition | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 23.77868516 (0.2) | 24.18161941 (0.4) | 23.779 (0.2) | 26.7 | |||||||||
Proper motion (declination) | [mas/yr] | -31.5903922 (0.2) | -31.71468304 (0.4) | -31.59 (0.2) | -36.4 | |||||||||
Variability | ||||||||||||||
Magnetic | ||||||||||||||
Bd | [MG] | |||||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | ||||||||||||||
V magnitude | ||||||||||||||
R magnitude | ||||||||||||||
I magnitude | ||||||||||||||
J magnitude | ||||||||||||||
H magnitude | ||||||||||||||
K magnitude | ||||||||||||||
u magnitude | 19.22 (0.02) | 19.22 (0.02) | 19.23 (0.03) | 19.23 | 19.23 (0.03) | |||||||||
g magnitude | 18.84 (0.009) | 18.84 (0.009) | 18.84 (0.02) | 18.84 | 18.84 (0.02) | |||||||||
r magnitude | 18.94 (0.01) | 18.94 (0.01) | 18.93 (0.02) | 18.93 | 18.94 (0.02) | |||||||||
i magnitude | 19.05 (0.02) | 19.05 (0.02) | 19.04 (0.02) | 19.05 | 19.04 (0.02) | |||||||||
z magnitude | 19.34 (0.07) | 19.34 (0.07) | 19.33 (0.07) | 19.33 | 19.34 (0.07) | |||||||||
G magnitude | 18.88 (0.02) | 18.91 | 18.88 | 18.88 (0.003) | ||||||||||
BP magnitude | 18.99 (0.02) | 18.98 | ||||||||||||
RP magnitude | 18.76 (0.04) | 18.78 | ||||||||||||
Pan g magnitude | 18.85 (0.02) | |||||||||||||
Pan r magnitude | 18.97 (0.008) | |||||||||||||
Pan i magnitude | 19.11 (0.007) | |||||||||||||
Pan z magnitude | 19.28 (0.02) | |||||||||||||
Pan y magnitude | 19.48 (0.06) | |||||||||||||
E(B-V) | 0.011 |
* Constant surface field
Spectra without link are available upon request
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.