All names: LAMOST J081203.70+070352.0, 2MASS J08120370+0703521, Gaia DR2 3097524714456788992, Gaia EDR3 3097524714456788992, GALEXJ08120+0703, GALEX J081203.8+070352, Gaia DR3 3097524714456788992, UCAC2 34276307, GALEX J081203.9+070352, TIC 334414449, UCAC4 486-046130
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 12 03.70 (0.04) | 08 12 03.74 | 08 12 03.70 (0.04) | ||
| Declination | 07 03 51.95 (0.03) | 07 03 51.80 | 07 03 52.02 (0.03) | ||
| Spectral type | sdOB | sdB | |||
| Effective temperature | [K] | 35590.0 (620) | |||
| log(g) | [cgs] | 5.75 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.09 (0.05) | 0.94 (0.06) | 1.09 (0.05) | |
| Distance | [pc] | 921.57 (41) | 1067.58 (67) | 921.57 (41) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -6.326 (0.05) | -6.445 (0.1) | -6.326 (0.05) | |
| Proper motion (declination) | [mas/yr] | -4.505 (0.03) | -4.494 (0.06) | -4.505 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.22 (0.05) | ||||
| V magnitude | 14.45 (0.02) | ||||
| R magnitude | 14.76 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.11 (0.04) | 15.11 (0.04) | |||
| H magnitude | 15.35 (0.09) | 15.35 (0.09) | |||
| K magnitude | 15.54 (0.2) | 15.54 (0.2) | |||
| u magnitude | 13.87 (0.003) | ||||
| g magnitude | 14.22 (0.04) | ||||
| r magnitude | 14.68 (0.005) | 14.71 (0.09) | |||
| i magnitude | 15.04 (0.004) | 15.08 (0.1) | |||
| z magnitude | 15.37 (0.005) | ||||
| G magnitude | 14.42 (0.003) | 14.45 (0.0007) | 14.42 (0.003) | ||
| BP magnitude | 14.27 (0.003) | 14.20 (0.006) | |||
| RP magnitude | 14.73 (0.004) | 14.73 (0.002) | |||
| Pan g magnitude | 14.24 (0) | ||||
| Pan r magnitude | 14.68 (0.004) | ||||
| Pan i magnitude | 15.06 (0.003) | ||||
| Pan z magnitude | 15.35 (0.004) | ||||
| Pan y magnitude | 15.53 (0.003) | ||||
| E(B-V) | 0.023 | ||||
* 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.