All names: Gaia DR2 1547845190583076864, Gaia DR3 1547845194881216000, SDSS J121910.80+504948.9, SDSS J121910.81+504949.37, SDSS J121910.81+504949.3, GALEX J121910.8+504949, Gaia EDR3 1547845194881216000
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 19 10.81 (0.2) | 12 19 10.81 | 12 19 10.81 (0.3) | 12 19 10.81 | 12 19 10.83 (0.2) | |||||
| Declination | 50 49 49.31 (0.2) | 50 49 48.98 | 50 49 49.30 (0.3) | 50 49 49.31 | 50 49 48.89 (0.2) | |||||
| Spectral type | DA: | DA | DA | DA | ||||||
| Effective temperature | [K] | 7606.0 (61) | 7621.0 (290) | |||||||
| log(g) | [cgs] | 7.55 (0.1) | 8.09 (0.09) | |||||||
| Mass | [M☉] | 0.3429999999999999 (0.04) | 0.649 (0.07) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 5.57 (0.3) | 5.15 (0.4) | 5.57 | 5.57 (0.3) | |||||
| Distance | [pc] | 179.65 (8) | 194.23 (16) | 179.65 | 179.65 (8) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -11.48088725 (0.2) | -11.81808276 (0.5) | -11.481 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | 26.07253378 (0.2) | 26.71074416 (0.5) | 26.073 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.19 (0.04) | 20.16 (0.05) | 20.18 (0.04) | |||||||
| g magnitude | 19.68 (0.01) | 19.70 (0.02) | 19.69 (0.01) | |||||||
| r magnitude | 19.58 (0.02) | 19.59 (0.02) | 19.59 (0.01) | |||||||
| i magnitude | 19.58 (0.02) | 19.58 (0.03) | 19.59 (0.02) | |||||||
| z magnitude | 19.61 (0.07) | 19.62 (0.06) | 19.63 (0.07) | |||||||
| G magnitude | 19.55 (0.03) | 19.58 | 19.55 | 19.55 (0.004) | ||||||
| BP magnitude | 19.77 (0.03) | 19.69 | ||||||||
| RP magnitude | 19.26 (0.04) | 19.26 | ||||||||
| Pan g magnitude | 19.70 (0.01) | |||||||||
| Pan r magnitude | 19.61 (0.01) | |||||||||
| Pan i magnitude | 19.58 (0.008) | |||||||||
| Pan z magnitude | 19.65 (0.02) | |||||||||
| Pan y magnitude | 19.58 (0.08) | |||||||||
| E(B-V) | 0.012 | |||||||||
* 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.