All names: SDSS J092206.80+081929.3, LAMOST J092206.79+081930.7, 2MASS J09220680+0819294, UCAC4 492-052082, GALEX J092206.8+081930, SDSSJ092206.80+081929.4, Gaia EDR3 587484528898551552, Gaia DR2 587484528898551552, SDSS J092206.80+081929.4, Gaia DR3 587484528898551552
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 09 22 06.80 (0.05) | 09 22 06.80 | 09 22 06.80 (0.05) | ||
| Declination | 08 19 29.49 (0.04) | 08 19 29.40 | 08 19 29.47 (0.04) | ||
| Spectral type | sdOB | sdB0.2He11 | |||
| Effective temperature | [K] | 32803.0 (917) | |||
| log(g) | [cgs] | 5.81 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.69 (0.06) | 0.70 (0.1) | 0.69 (0.06) | |
| Distance | [pc] | 1441.96 (122) | 1421.87 (208) | 1441.96 (122) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 0.492 (0.06) | 0.491 (0.2) | 0.492 (0.06) | |
| Proper motion (declination) | [mas/yr] | 1.329 (0.04) | 1.529 (0.2) | 1.329 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.16 (0.1) | 16.16 (0.1) | |||
| H magnitude | 16.29 (0.2) | 16.29 (0.2) | |||
| K magnitude | 16.63 | ||||
| u magnitude | 15.09 (0.004) | 15.09 (0.004) | |||
| g magnitude | 15.32 (0.004) | 15.32 (0.004) | |||
| r magnitude | 15.82 (0.005) | 15.82 (0.005) | |||
| i magnitude | 16.15 (0.005) | 16.15 (0.005) | |||
| z magnitude | 16.47 (0.009) | 16.47 (0.009) | |||
| G magnitude | 15.58 (0.003) | 15.59 (0.001) | 15.58 (0.003) | ||
| BP magnitude | 15.44 (0.003) | 15.39 (0.01) | |||
| RP magnitude | 15.86 (0.006) | 15.85 (0.006) | |||
| Pan g magnitude | 15.41 (0.002) | ||||
| Pan r magnitude | 15.83 (0.003) | ||||
| Pan i magnitude | 16.19 (0.002) | ||||
| Pan z magnitude | 16.46 (0.005) | ||||
| Pan y magnitude | 16.64 (0.003) | ||||
| E(B-V) | 0.028 | ||||
* 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.