All names: SDSS J100019.98-003413.44, Gaia EDR3 3833217389231778944, USNO-B1.0 0894-00189204, GALEX J100020.0-003413, SDSS J100019.98-003413.4, Gaia DR2 3833217389231778944, SDSS J100019.99-003413.4, SDSS J100019.98-003413.3, Gaia DR3 3833217389231778944, LAMOST J100019.99-003413.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | SDSS DR10 | Gaia DR2 | Stilism | Guo et al. 2015 | Kepler et al. 2015 | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 00 19.98 (0.1) | 10 00 19.99 | 10 00 19.99 | 10 00 19.98 (0.2) | 10 00 19.99 (0.1) | 10 00 19.98 | ||||||
| Declination | -00 34 13.43 (0.1) | -00 34 13.33 | -00 34 13.33 | -00 34 13.43 (0.2) | -00 34 13.35 (0.1) | -00 34 13.33 | ||||||
| Spectral type | subdwarf | DAO/sdO | sdO | sdO | SDO | |||||||
| Effective temperature | [K] | 70588.0 (2570) | 55446.0 (2135) | |||||||||
| log(g) | [cgs] | 5.73 (0.08) | 5.56 (0.1) | |||||||||
| Mass | [M☉] | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 0.25 (0.1) | -0.01 (0.2) | 0.25 (0.1) | ||||||||
| Distance | [pc] | 4028.22 (2060) | 4029.01 (2062) | |||||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.09045254 (0.1) | -6.192723425 (0.3) | -6.09 (0.1) | -4.4 | |||||||
| Proper motion (declination) | [mas/yr] | -5.366527489 (0.1) | -5.202696376 (0.3) | -5.367 (0.1) | -12.0 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 17.30 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | 17.80 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 18.45 (0.06) | |||||||||||
| H magnitude | 18.60 (0.1) | |||||||||||
| K magnitude | ||||||||||||
| u magnitude | 17.05 (0.007) | 17.05 (0.007) | 17.07 (0.01) | 17.08 | 17.05 (0.007) | 17.08 (0.01) | ||||||
| g magnitude | 17.48 (0.005) | 17.48 (0.005) | 17.51 (0.01) | 17.52 | 17.48 (0.005) | 17.52 (0.02) | ||||||
| r magnitude | 18.02 (0.007) | 18.02 (0.007) | 18.02 (0.02) | 18.04 | 18.02 (0.007) | 18.04 (0.02) | ||||||
| i magnitude | 18.37 (0.009) | 18.37 (0.009) | 18.38 (0.02) | 18.43 | 18.37 (0.009) | 18.40 (0.02) | ||||||
| z magnitude | 18.75 (0.03) | 18.75 (0.03) | 18.73 (0.03) | 18.76 | 18.73 (0.03) | 18.74 (0.03) | ||||||
| G magnitude | 17.77 (0.01) | 17.80 | 17.77 (0.003) | |||||||||
| BP magnitude | 17.63 (0.01) | 17.54 | ||||||||||
| RP magnitude | 18.07 (0.02) | 18.06 | ||||||||||
| Pan g magnitude | 17.58 (0.005) | |||||||||||
| Pan r magnitude | 18.03 (0.007) | |||||||||||
| Pan i magnitude | 18.40 (0.009) | |||||||||||
| Pan z magnitude | 18.69 (0.007) | |||||||||||
| Pan y magnitude | 18.80 (0.02) | |||||||||||
| E(B-V) | 0.029 | |||||||||||
* 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.