All names: Gaia DR2 3602485977951253248, GALEX J120250.9-012116, SDSSJ120250.90-012116.8, SDSS J120250.90-012116.8, Gaia EDR3 3602485977951253248, 2QZ J120250.9-012117, Gaia DR3 3602485977951253248
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 02 50.91 (0.3) | 12 02 50.91 | 12 02 50.90 | 12 02 50.91 (0.4) | 12 02 50.91 (0.3) | 12 02 50.91 | |||
| Declination | -01 21 16.89 (0.2) | -01 21 16.82 | -01 21 16.80 | -01 21 16.89 (0.2) | -01 21 16.86 (0.2) | -01 21 16.84 | |||
| Spectral type | sdB | sdB | SD_auto | ||||||
| Effective temperature | [K] | 21374.0 (471) | |||||||
| log(g) | [cgs] | 5.00 (0.008) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | -0.17 (0.4) | 0.12 (0.4) | 0.12 (0.4) | 0.12 (0.4) | ||||
| Distance | [pc] | 8620.69 (32506) | 8618.29 (32486) | 8620.69 (32506) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1.180131785 (0.4) | -1.029 (0.7) | -1.029024885 (0.7) | -1.18 (0.4) | -0.7 | |||
| Proper motion (declination) | [mas/yr] | -1.691023489 (0.2) | -1.733 (0.3) | -1.733258321 (0.3) | -1.691 (0.2) | -0.7 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 18.97 | ||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 19.60 (0.2) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 19.06 (0.02) | 19.06 (0.02) | 19.06 (0.02) | 19.04 (0.03) | |||||
| g magnitude | 18.85 (0.008) | 18.85 (0.008) | 18.85 (0.008) | 18.84 (0.02) | |||||
| r magnitude | 19.20 (0.01) | 19.20 (0.01) | 19.20 (0.01) | 19.21 (0.02) | |||||
| i magnitude | 19.50 (0.02) | 19.50 (0.02) | 19.50 (0.02) | 19.50 (0.03) | |||||
| z magnitude | 19.74 (0.1) | 19.74 (0.1) | 19.71 (0.09) | 19.71 (0.09) | |||||
| G magnitude | 19.04 (0.03) | 19.08 (0.003) | 19.08 | 19.04 (0.003) | |||||
| BP magnitude | 19.01 (0.03) | 18.92 (0.03) | 18.92 | ||||||
| RP magnitude | 19.18 (0.04) | 19.06 (0.04) | 19.06 | ||||||
| Pan g magnitude | 18.91 (0.005) | 18.91 (0.005) | |||||||
| Pan r magnitude | 19.22 (0.007) | 19.22 (0.007) | |||||||
| Pan i magnitude | 19.53 (0.01) | 19.53 (0.01) | |||||||
| Pan z magnitude | 19.75 (0.009) | 19.75 (0.009) | |||||||
| Pan y magnitude | 19.75 (0.05) | 19.75 (0.05) | |||||||
| E(B-V) | 0.024 | ||||||||
* 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.