All names: ATO J021.2457+47.9447, Gaia DR3 399911384254920448, SDSS J012458.96+475640.9, Gaia DR2 399911384254920448, TIC 354155298, ZTF J012458.98+475640.9, SDSS J012458.96+475641.0, GALEX J012458.9+475641
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 01 24 58.98 | 01 24 58.96 (0.06) | |
| Declination | 47 56 40.99 | 47 56 41.09 (0.05) | |
| Spectral type | DA: | sd+F/K | |
| Effective temperature | [K] | ||
| log(g) | [cgs] | ||
| Mass | [M☉] | ||
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 1.88 | 1.88 (0.07) |
| Distance | [pc] | 531.12 | 531.12 (19) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 14.388 (0.07) | |
| Proper motion (declination) | [mas/yr] | -6.649 (0.07) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 16.54 (0.007) | ||
| g magnitude | 16.87 (0.004) | ||
| r magnitude | 17.06 (0.005) | ||
| i magnitude | 17.01 (0.006) | ||
| z magnitude | 16.86 (0.01) | ||
| G magnitude | 16.88 | 16.88 (0.005) | |
| 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.