All names: SDSS J090757.46+391453.8, SDSS J090757.45+391453.9, Gaia DR2 719165473119308672, Gaia EDR3 719165473119308672, GALEX J090757.4+391454, Gaia DR3 719165473119308672, SDSS J090757.46+391454.0, SDSS J090757.46+391453.9, WD 0904+394
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 09 07 57.47 (0.3) | 09 07 57.46 | 09 07 57.47 (0.3) | 09 07 57.46 (0.3) | 09 07 57.45 | 09 07 57.38 | 09 07 57.46 | |||||
Declination | 39 14 53.81 (0.2) | 39 14 54.00 | 39 14 53.81 (0.2) | 39 14 54.01 (0.2) | 39 14 53.96 | 39 14 52.08 | 39 14 53.94 | |||||
Spectral type | DA | DA | DA_auto | DA | DA | DA | ||||||
Effective temperature | [K] | 14845.0 | 17494.0 (370) | 17981.0 (411) | ||||||||
log(g) | [cgs] | 7.36 | 7.62 (0.09) | 7.68 (0.09) | ||||||||
Mass | [M☉] | 0.329 | 0.481 (0.04) | |||||||||
log(Luminosity) | [L☉] | |||||||||||
Cooling age | [Gyr] | 0.0975 | ||||||||||
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] | 1.72 (0.4) | 1.58 (0.5) | 1.72 (0.4) | ||||||||
Distance | [pc] | 581.72 (126) | 632.56 (191) | 581.73 (126) | ||||||||
Composition | H | |||||||||||
Proper motion (right ascension) | [mas/yr] | 11.55422533 (0.3) | 11.24961046 (0.6) | 11.554 (0.3) | 5.7 | |||||||
Proper motion (declination) | [mas/yr] | -12.7979874 (0.3) | -12.61036647 (0.4) | -12.798 (0.3) | -13.5 | |||||||
Variability | ||||||||||||
Magnetic | ||||||||||||
Bd | [MG] | |||||||||||
Infrared excess (disk) | ||||||||||||
Binarity | ||||||||||||
B magnitude | ||||||||||||
V magnitude | ||||||||||||
R magnitude | ||||||||||||
I magnitude | ||||||||||||
J magnitude | ||||||||||||
H magnitude | ||||||||||||
K magnitude | ||||||||||||
u magnitude | 19.41 (0.03) | 19.41 (0.03) | 19.43 (0.03) | 19.43 | 19.44 (0.03) | |||||||
g magnitude | 19.22 (0.01) | 19.22 (0.01) | 19.22 (0.04) | 19.22 | 19.23 (0.04) | |||||||
r magnitude | 19.58 (0.02) | 19.58 (0.02) | 19.58 (0.02) | 19.58 | 19.59 (0.02) | |||||||
i magnitude | 19.79 (0.03) | 19.79 (0.03) | 19.78 (0.04) | 19.78 | 19.79 (0.04) | |||||||
z magnitude | 20.39 (0.2) | 20.39 (0.2) | 20.40 (0.1) | 20.40 | 20.41 (0.1) | |||||||
G magnitude | 19.44 (0.03) | 19.48 | 19.44 (0.004) | |||||||||
BP magnitude | 19.41 (0.03) | 19.37 | ||||||||||
RP magnitude | 19.55 (0.07) | 19.54 | ||||||||||
Pan g magnitude | 19.29 (0.008) | |||||||||||
Pan r magnitude | 19.57 (0.02) | |||||||||||
Pan i magnitude | 19.89 (0.01) | |||||||||||
Pan z magnitude | 20.07 (0.02) | |||||||||||
Pan y magnitude | 20.27 (0.2) | |||||||||||
E(B-V) | 0.024 |
* 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.