All names: Gaia DR2 744988259612152192, GALEX J100100.1+313412, Gaia EDR3 744988259612152192, Gaia DR3 744988259612152192, SDSS J100100.10+313413.1, SDSS J100100.10+313413.16
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Bedard et al. 2020 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 01 00.10 (0.4) | 10 01 00.10 | 10 01 00.10 (0.6) | 10 01 00.10 (0.4) | |||||||
| Declination | 31 34 13.10 (0.4) | 31 34 13.16 | 31 34 13.11 (0.5) | 31 34 13.22 (0.4) | |||||||
| Spectral type | DO | DB: | DC | DA: | |||||||
| Effective temperature | [K] | 46815.0 (1421) | 45970.0 | 32239.0 (3000) | |||||||
| log(g) | [cgs] | 7.15 (0.6) | 6.79 | 7.88 (0.05) | |||||||
| Mass | [M☉] | 0.32 (0.2) | 0.298 | 0.5539999999999999 (0.02) | |||||||
| log(Luminosity) | [L☉] | 0.43 (0.4) | |||||||||
| Cooling age | [Gyr] | 0.0001 | |||||||||
| log(H/He) | <-3.01 | ||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(N/He) | |||||||||||
| log(O/He) | |||||||||||
| log(Na/He) | |||||||||||
| log(Mg/He) | |||||||||||
| log(Al/He) | |||||||||||
| log(Si/He) | |||||||||||
| log(P/He) | |||||||||||
| log(S/He) | |||||||||||
| log(Cl/He) | |||||||||||
| log(Sc/He) | |||||||||||
| log(Ti/He) | |||||||||||
| log(V/He) | |||||||||||
| log(Cr/He) | |||||||||||
| log(Mn/He) | |||||||||||
| log(Fe/He) | |||||||||||
| log(Co/He) | |||||||||||
| log(Ni/He) | |||||||||||
| log(Cu/He) | |||||||||||
| log(Zn/He) | |||||||||||
| log(Ga/He) | |||||||||||
| log(Ge/He) | |||||||||||
| log(Sr/He) | |||||||||||
| Parallax | [mas] | 0.73 (0.5) | 0.00 (0.8) | 0.73 (0.5) | |||||||
| Distance | [pc] | 1369.05 (904) | 241889.80 (45582767) | 1369.11 (904) | |||||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 1.671760762 (0.5) | 0.786327658 (1) | 1.672 (0.5) | |||||||
| Proper motion (declination) | [mas/yr] | -7.285719879 (0.4) | -5.504454307 (0.9) | -7.286 (0.4) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.39 (0.03) | 19.39 (0.03) | 19.39 (0.03) | ||||||||
| g magnitude | 19.72 (0.01) | 19.72 (0.01) | 19.72 (0.01) | ||||||||
| r magnitude | 20.20 (0.02) | 20.20 (0.02) | 20.20 (0.02) | ||||||||
| i magnitude | 20.49 (0.04) | 20.49 (0.04) | 20.49 (0.04) | ||||||||
| z magnitude | 20.70 (0.1) | 20.70 (0.1) | 20.70 (0.1) | ||||||||
| G magnitude | 19.98 (0.05) | 20.05 | 19.98 (0.005) | ||||||||
| BP magnitude | 19.93 (0.05) | 19.72 | |||||||||
| RP magnitude | 20.05 (0.09) | 20.28 | |||||||||
| Pan g magnitude | 19.84 (0.02) | ||||||||||
| Pan r magnitude | 20.22 (0.02) | ||||||||||
| Pan i magnitude | 20.55 (0.01) | ||||||||||
| Pan z magnitude | 20.73 (0.06) | ||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.019 | ||||||||||
* 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.