All names: Gaia EDR3 102404252403686016, GALEX J022951.9+250901, Gaia DR3 102404252403686016, Gaia DR2 102404252403686016, SDSS J022951.81+250901.0, SDSS J022951.79+250901.3, SDSS J022951.79+250901.2
| Parameter | Unit | Gaia EDR3 | Stilism | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|
| Right ascension | 02 29 51.84 (0.3) | 02 29 51.84 | 02 29 51.77 (0.3) | |||
| Declination | 25 09 00.71 (0.4) | 25 09 00.71 | 25 09 01.57 (0.4) | |||
| Spectral type | DA | DA | DA | |||
| Effective temperature | [K] | 6846.0 (393) | ||||
| log(g) | [cgs] | 7.98 (0.1) | ||||
| Mass | [M☉] | 0.582 (0.1) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 6.07 (0.4) | 6.07 | 6.07 (0.4) | ||
| Distance | [pc] | 164.78 (11) | 164.78 | 164.78 (11) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 61.047 (0.5) | 61.047 (0.5) | |||
| Proper motion (declination) | [mas/yr] | -53.452 (0.5) | -53.452 (0.5) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 20.42 (0.06) | |||||
| g magnitude | 19.90 (0.02) | |||||
| r magnitude | 19.69 (0.02) | |||||
| i magnitude | 19.61 (0.02) | |||||
| z magnitude | 19.71 (0.09) | |||||
| G magnitude | 19.65 (0.005) | 19.65 | 19.65 (0.005) | |||
| BP magnitude | 19.78 (0.08) | |||||
| RP magnitude | 19.23 (0.05) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.061 | |||||
* 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.