All names: Gaia EDR3 1302789578038328832, Gaia DR3 1302789578038328832, SDSS J161231.89+241048.41, SDSSJ161231.89+241048.4, GALEX J161231.9+241048, SDSS J161231.89+241048.4, Gaia DR2 1302789578038328832
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 12 31.89 (0.1) | 16 12 31.89 | 16 12 31.89 | 16 12 31.89 (0.1) | 16 12 31.89 (0.1) | |||
| Declination | 24 10 48.37 (0.2) | 24 10 48.40 | 24 10 48.40 | 24 10 48.37 (0.2) | 24 10 48.45 (0.2) | |||
| Spectral type | sdOB | DB: | DB | |||||
| Effective temperature | [K] | 32174.0 (3000) | ||||||
| log(g) | [cgs] | 7.84 (0.05) | ||||||
| Mass | [M☉] | 0.535 (0.02) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | -0.07 (0.2) | -0.18 (0.3) | -0.18 (0.3) | ||||
| Distance | [pc] | |||||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -2.084639123 (0.2) | -1.856 (0.4) | -1.856479233 (0.4) | -2.085 (0.2) | |||
| Proper motion (declination) | [mas/yr] | -5.197261766 (0.2) | -5.165 (0.5) | -5.164906097 (0.5) | -5.197 (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 | 18.73 (0.02) | 18.73 (0.02) | 18.73 (0.02) | 18.73 (0.02) | ||||
| g magnitude | 19.05 (0.009) | 19.05 (0.009) | 19.05 (0.01) | 19.05 (0.01) | ||||
| r magnitude | 19.51 (0.01) | 19.51 (0.01) | 19.51 (0.01) | 19.51 (0.01) | ||||
| i magnitude | 19.82 (0.02) | 19.82 (0.02) | 19.82 (0.02) | 19.82 (0.02) | ||||
| z magnitude | 20.10 (0.1) | 20.10 (0.1) | 20.10 (0.1) | 20.10 (0.1) | ||||
| G magnitude | 19.28 (0.02) | 19.33 (0.003) | 19.33 | 19.28 (0.003) | ||||
| BP magnitude | 19.19 (0.02) | 19.11 (0.02) | 19.11 | |||||
| RP magnitude | 19.63 (0.05) | 19.57 (0.03) | 19.57 | |||||
| Pan g magnitude | 19.09 (0.008) | 19.09 (0.008) | ||||||
| Pan r magnitude | 19.50 (0.01) | 19.50 (0.01) | ||||||
| Pan i magnitude | 19.87 (0.008) | 19.87 (0.008) | ||||||
| Pan z magnitude | 20.10 (0.07) | 20.10 (0.07) | ||||||
| Pan y magnitude | 19.87 (0.2) | 19.87 (0.2) | ||||||
| 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.