All names: GALEX J000025.3+251726, Gaia DR3 2853088466258109312, SDSS J000025.40+251726.3, Gaia EDR3 2853088466258109312, Gaia DR2 2853088466258109312, SDSS J000025.40+251726.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 00 25.41 (0.5) | 00 00 25.40 | 00 00 25.41 (0.8) | 00 00 25.41 (0.5) | 00 00 25.40 | ||||
| Declination | 25 17 26.28 (0.3) | 25 17 26.38 | 25 17 26.28 (0.4) | 25 17 26.46 (0.3) | 25 17 26.40 | ||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 21114.0 (548) | |||||||
| log(g) | [cgs] | 7.90 (0.09) | |||||||
| Mass | [M☉] | 0.576 (0.04) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.06 (0.7) | 0.15 (1) | 1.06 (0.7) | |||||
| Distance | [pc] | 943.38 (628) | 6812.98 (50170) | 943.40 (628) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.137643559 (0.8) | 0.45235603 (2) | 0.138 (0.8) | |||||
| Proper motion (declination) | [mas/yr] | -11.80219849 (0.4) | -12.46418771 (0.7) | -11.802 (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 | 20.23 (0.04) | 20.23 (0.04) | 20.20 (0.05) | ||||||
| g magnitude | 20.16 (0.02) | 20.15 (0.02) | 20.17 (0.02) | ||||||
| r magnitude | 20.48 (0.03) | 20.48 (0.03) | 20.52 (0.03) | ||||||
| i magnitude | 20.78 (0.05) | 20.79 (0.05) | 20.69 (0.05) | ||||||
| z magnitude | 20.96 (0.2) | 20.96 (0.2) | 21.04 (0.3) | ||||||
| G magnitude | 20.32 (0.07) | 20.40 | 20.32 (0.005) | ||||||
| BP magnitude | 20.21 (0.07) | 20.32 | |||||||
| RP magnitude | 20.39 (0.1) | 20.58 | |||||||
| Pan g magnitude | 20.18 (0.01) | ||||||||
| Pan r magnitude | 20.50 (0.02) | ||||||||
| Pan i magnitude | 20.74 (0.02) | ||||||||
| Pan z magnitude | 20.97 (0.1) | ||||||||
| Pan y magnitude | 19.61 (0.3) | ||||||||
| E(B-V) | 0.057 | ||||||||
* 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.