All names: GALEX J002829.2-015344, SDSS J002829.30-015345.1, USNO-B1.0 0881-00007738, LBQS 0025-0210, Gaia DR3 2541046005438445184, Gaia DR2 2541046005438445184
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 00 28 29.31 | 00 28 29.31 (0.1) | |
| Declination | -01 53 45.17 | -01 53 44.79 (0.1) | |
| Spectral type | DA | sdB | |
| Effective temperature | [K] | 19041.0 (1083) | |
| log(g) | [cgs] | 8.02 (0.08) | |
| Mass | [M☉] | 0.635 (0.06) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 3.13 | 3.13 (0.2) |
| Distance | [pc] | 319.71 | 319.71 (19) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 1.231 (0.3) | |
| Proper motion (declination) | [mas/yr] | -23.533 (0.2) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 18.20 | ||
| V magnitude | |||
| R magnitude | 19.00 | ||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 18.45 (0.02) | ||
| g magnitude | 18.32 (0.007) | ||
| r magnitude | 18.63 (0.01) | ||
| i magnitude | 18.91 (0.02) | ||
| z magnitude | 19.36 (0.06) | ||
| G magnitude | 18.48 | 18.48 (0.003) | |
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.