All names: WD 2246-021, GALEX J224851.3-015412, Gaia DR2 2649709017328282240, SDSS J224851.30-015413.68, USNO-B1.0 0880-00779558, Gaia DR3 2649709017328282240, Gaia EDR3 2649709017328282240, SDSS J224851.30-015413.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Stilism | Kepler et al. 2015 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 48 51.35 (0.5) | 22 48 51.31 | 22 48 51.26 (0.5) | 22 48 50.52 | |||||
| Declination | -01 54 14.06 (0.5) | -01 54 13.69 | -01 54 13.27 (0.5) | -01 54 07.20 | |||||
| Spectral type | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 7913.0 (162) | |||||||
| log(g) | [cgs] | 7.14 (0.3) | |||||||
| Mass | [M☉] | 0.27 (0.07) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 3.62 (0.6) | 3.62 (0.6) | ||||||
| Distance | [pc] | 276.06 (48) | 276.06 (48) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 81.57144758 (0.8) | 81.571 (0.8) | ||||||
| Proper motion (declination) | [mas/yr] | -49.43126065 (0.6) | -49.431 (0.6) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 20.20 | ||||||||
| V magnitude | |||||||||
| R magnitude | 19.70 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.54 (0.07) | 20.56 (0.06) | 20.56 (0.06) | ||||||
| g magnitude | 20.17 (0.02) | 20.18 (0.02) | 20.18 (0.02) | ||||||
| r magnitude | 20.14 (0.02) | 20.13 (0.03) | 20.13 (0.03) | ||||||
| i magnitude | 20.12 (0.03) | 20.12 (0.04) | 20.12 (0.04) | ||||||
| z magnitude | 19.95 (0.1) | 19.88 (0.1) | 19.88 (0.1) | ||||||
| G magnitude | 20.09 (0.1) | 20.09 (0.009) | |||||||
| BP magnitude | 20.68 (0.1) | ||||||||
| RP magnitude | 20.01 (0.1) | ||||||||
| Pan g magnitude | 20.19 (0.02) | ||||||||
| Pan r magnitude | 20.15 (0.01) | ||||||||
| Pan i magnitude | 20.13 (0.02) | ||||||||
| Pan z magnitude | 20.20 (0.03) | ||||||||
| Pan y magnitude | 19.76 (0.1) | ||||||||
| E(B-V) | 0.049 | ||||||||
* 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.