All names: SDSS J094226.56+351644.2, Gaia DR2 797854393583526528, Gaia EDR3 797854393583526528, Gaia DR3 797854393583526528, SDSS J094226.55+351644.1, SDSS J094226.56+351644.0, WD 0939+355, GALEX J094226.5+351645, SDSS J094226.56+351644.1, SDSS J094226.55+351644.2
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 09 42 26.54 (0.3) | 09 42 26.56 | 09 42 26.55 (0.4) | 09 42 26.56 (0.3) | 09 42 26.56 | 09 42 26.81 | 09 42 26.56 | ||||||
Declination | 35 16 44.20 (0.2) | 35 16 44.22 | 35 16 44.19 (0.3) | 35 16 44.09 (0.2) | 35 16 44.19 | 35 16 40.80 | 35 16 44.19 | ||||||
Spectral type | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
Effective temperature | [K] | 14947.0 | 17720.0 (500) | 17797.0 (270) | 17050.0 (283) | ||||||||
log(g) | [cgs] | 8.06 | 7.84 (0.09) | 7.75 (0.06) | 7.77 (0.06) | ||||||||
Mass | [M☉] | 0.648 | 0.53 (0.05) | 0.506 (0.03) | |||||||||
log(Luminosity) | [L☉] | ||||||||||||
Cooling age | [Gyr] | 0.2191 | 0.0912 | ||||||||||
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] | 2.41 (0.4) | 2.43 (0.6) | 2.41 (0.4) | |||||||||
Distance | [pc] | 415.63 (62) | 411.81 (93) | 415.63 (62) | |||||||||
Composition | H | H | |||||||||||
Proper motion (right ascension) | [mas/yr] | -12.43633558 (0.3) | -12.94590089 (0.7) | -12.436 (0.3) | -11.4 | ||||||||
Proper motion (declination) | [mas/yr] | 6.531803712 (0.2) | 7.393172647 (0.6) | 6.532 (0.2) | 5.0 | ||||||||
Variability | |||||||||||||
Magnetic | |||||||||||||
Bd | [MG] | ||||||||||||
Infrared excess (disk) | |||||||||||||
Binarity | |||||||||||||
B magnitude | |||||||||||||
V magnitude | |||||||||||||
R magnitude | |||||||||||||
I magnitude | |||||||||||||
J magnitude | |||||||||||||
H magnitude | |||||||||||||
K magnitude | |||||||||||||
u magnitude | 19.59 (0.03) | 19.59 (0.03) | 19.54 (0.04) | 19.54 | 19.54 (0.04) | ||||||||
g magnitude | 19.31 (0.01) | 19.31 (0.01) | 19.29 (0.03) | 19.29 | 19.30 (0.03) | ||||||||
r magnitude | 19.59 (0.02) | 19.59 (0.02) | 19.59 (0.02) | 19.59 | 19.60 (0.02) | ||||||||
i magnitude | 19.92 (0.02) | 19.92 (0.03) | 19.91 (0.03) | 19.91 | 19.92 (0.03) | ||||||||
z magnitude | 20.05 (0.1) | 20.05 (0.1) | 20.06 (0.1) | 20.06 | 20.05 (0.1) | ||||||||
G magnitude | 19.49 (0.03) | 19.53 | 19.49 (0.004) | ||||||||||
BP magnitude | 19.50 (0.03) | 19.52 | |||||||||||
RP magnitude | 19.68 (0.05) | 19.62 | |||||||||||
Pan g magnitude | 19.35 (0.01) | ||||||||||||
Pan r magnitude | 19.63 (0.02) | ||||||||||||
Pan i magnitude | 19.92 (0.01) | ||||||||||||
Pan z magnitude | 20.12 (0.02) | ||||||||||||
Pan y magnitude | 20.21 (0.07) | ||||||||||||
E(B-V) | 0.017 |
* 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.