All names: SDSS J011919.87+301419.8, Gaia DR3 310195354299572864, SDSS J011919.89+301419.60, Gaia EDR3 310195354299572864, SDSS J011919.89+301419.6, Gaia DR2 310195354299572864
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Hardy et al. 2023b | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 19 19.88 (0.5) | 01 19 19.87 | 01 19 19.88 (0.6) | 01 19 19.87 (0.5) | 01 19 19.89 | ||||||
| Declination | 30 14 19.96 (0.6) | 30 14 19.86 | 30 14 19.96 (1) | 30 14 19.86 (0.6) | 30 14 19.62 | ||||||
| Spectral type | DBH | DBH | DBH: | DB | |||||||
| Effective temperature | [K] | 12200.3 (410) | 13903.0 | 14767.0 (433) | |||||||
| log(g) | [cgs] | 6.60 | 8.21 (0.3) | ||||||||
| Mass | [M☉] | 0.154 | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | -5.711 | ||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.15 (0.8) | 1.15 (0.8) | ||||||||
| Distance | [pc] | 872.62 (573) | 872.60 (573) | ||||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 6.627836499 (0.7) | 6.628 (0.7) | ||||||||
| Proper motion (declination) | [mas/yr] | 6.476512657 (0.7) | 6.477 (0.7) | ||||||||
| Variability | |||||||||||
| Magnetic | yes | ||||||||||
| Bd | [MG] | 6.7348707 (1) | |||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.18 (0.08) | 20.15 (0.05) | 20.15 (0.05) | ||||||||
| g magnitude | 20.07 (0.02) | 20.13 (0.02) | 20.13 (0.02) | ||||||||
| r magnitude | 20.24 (0.04) | 20.32 (0.03) | 20.32 (0.03) | ||||||||
| i magnitude | 20.40 (0.06) | 20.53 (0.04) | 20.53 (0.04) | ||||||||
| z magnitude | 20.45 (0.2) | 20.78 (0.2) | 20.78 (0.2) | ||||||||
| G magnitude | 20.21 (0.06) | 20.29 | 20.21 (0.007) | ||||||||
| BP magnitude | 20.18 (0.06) | 20.05 | |||||||||
| RP magnitude | 20.13 (0.1) | 20.24 | |||||||||
| Pan g magnitude | 20.21 (0.02) | ||||||||||
| Pan r magnitude | 20.37 (0.03) | ||||||||||
| Pan i magnitude | 20.55 (0.03) | ||||||||||
| Pan z magnitude | 20.70 (0.05) | ||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.045 | ||||||||||
* 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.