All names: SDSS J082731.74+092230.76, Gaia EDR3 599894849785434624, SDSS J082731.74+092230.7, SDSS J082731.73+092230.7, Gaia DR3 599894849785434624, Gaia DR2 599894849785434624, GALEX J082731.7+092231
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 08 27 31.74 (0.3) | 08 27 31.74 | 08 27 31.74 (0.5) | 08 27 31.73 (0.3) | ||||||
Declination | 09 22 30.56 (0.2) | 09 22 30.77 | 09 22 30.57 (0.4) | 09 22 30.88 (0.2) | ||||||
Spectral type | DA | DA | DA | DA | ||||||
Effective temperature | [K] | 8782.0 | 8463.0 (52) | |||||||
log(g) | [cgs] | 7.66 | 7.20 (0.1) | |||||||
Mass | [M☉] | 0.42 | 0.288 (0.03) | |||||||
log(Luminosity) | [L☉] | |||||||||
Cooling age | [Gyr] | 0.5705 | ||||||||
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] | 3.54 (0.3) | 3.51 (0.6) | 3.54 (0.3) | ||||||
Distance | [pc] | 282.64 (27) | 284.54 (46) | 282.64 (27) | ||||||
Composition | H | |||||||||
Proper motion (right ascension) | [mas/yr] | 10.78779839 (0.4) | 9.439252044 (1) | 10.788 (0.4) | ||||||
Proper motion (declination) | [mas/yr] | -19.77613912 (0.3) | -18.84260429 (0.8) | -19.776 (0.3) | ||||||
Variability | ||||||||||
Magnetic | ||||||||||
Bd | [MG] | |||||||||
Infrared excess (disk) | ||||||||||
Binarity | ||||||||||
B magnitude | ||||||||||
V magnitude | ||||||||||
R magnitude | ||||||||||
I magnitude | ||||||||||
J magnitude | ||||||||||
H magnitude | ||||||||||
K magnitude | ||||||||||
u magnitude | 19.94 (0.03) | 19.92 (0.03) | 19.94 (0.04) | |||||||
g magnitude | 19.49 (0.01) | 19.50 (0.02) | 19.49 (0.01) | |||||||
r magnitude | 19.45 (0.01) | 19.45 (0.02) | 19.45 (0.01) | |||||||
i magnitude | 19.54 (0.02) | 19.53 (0.02) | 19.54 (0.02) | |||||||
z magnitude | 19.62 (0.06) | 19.63 (0.05) | 19.62 (0.06) | |||||||
G magnitude | 19.41 (0.05) | 19.47 | 19.41 (0.004) | |||||||
BP magnitude | 19.54 (0.05) | 19.47 | ||||||||
RP magnitude | 19.15 (0.06) | 19.04 | ||||||||
Pan g magnitude | 19.49 (0.009) | |||||||||
Pan r magnitude | 19.46 (0.007) | |||||||||
Pan i magnitude | 19.57 (0.01) | |||||||||
Pan z magnitude | 19.72 (0.03) | |||||||||
Pan y magnitude | 19.76 (0.06) | |||||||||
E(B-V) | 0.018 |
* 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.