All names: TIC 330658435, PG 0902+124, PG0902+124, Gaia DR2 604474251290699776, 2MASS J09054092+1212282, Gaia DR3 604474251290699776, Gaia EDR3 604474251290699776, LAMOST J090540.89+121228.5, SDSS J090540.92+121228.1, GALEX J090540.9+121228
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 09 05 40.93 (0.04) | 09 05 40.89 | 09 05 40.92 (0.04) | ||
| Declination | 12 12 28.22 (0.03) | 12 12 28.36 | 12 12 28.19 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 28050.0 (840) | |||
| log(g) | [cgs] | 5.50 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.86 (0.04) | 0.79 (0.05) | 0.86 (0.04) | |
| Distance | [pc] | 1160.63 (53) | 1272.75 (87) | 1160.63 (53) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 7.59 (0.04) | 7.599 (0.1) | 7.59 (0.04) | |
| Proper motion (declination) | [mas/yr] | 1.572 (0.04) | 1.732 (0.1) | 1.572 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.96 | ||||
| V magnitude | 14.67 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.25 (0.04) | 15.25 (0.04) | |||
| H magnitude | 15.16 (0.09) | 15.16 (0.09) | |||
| K magnitude | 15.59 (0.2) | 15.59 (0.2) | |||
| u magnitude | 14.18 (0.004) | 14.21 (0.02) | |||
| g magnitude | 14.38 (0.003) | 14.39 (0.01) | |||
| r magnitude | 14.84 (0.004) | 14.85 (0.04) | |||
| i magnitude | 15.17 (0.005) | 15.20 (0.02) | |||
| z magnitude | 15.47 (0.006) | 15.48 (0.02) | |||
| G magnitude | 14.60 (0.003) | 14.62 (0.0009) | 14.60 (0.003) | ||
| BP magnitude | 14.47 (0.003) | 14.41 (0.006) | |||
| RP magnitude | 14.86 (0.004) | 14.86 (0.002) | |||
| Pan g magnitude | 14.43 (0.002) | ||||
| Pan r magnitude | 14.86 (0.004) | ||||
| Pan i magnitude | 15.20 (0.004) | ||||
| Pan z magnitude | 15.47 (0.002) | ||||
| Pan y magnitude | 15.65 (0.004) | ||||
| 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.