All names: TIC 77548823, SDSS J025300.23+325531.2, 2MASS J02530023+3255313, SDSSJ025300.23+325531.3, Gaia DR2 136578796078347008, GALEX J025300.2+325531, Gaia DR3 136578796078347008
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 53 00.23 | 02 53 00.24 (0.02) | ||
| Declination | 32 55 31.30 | 32 55 31.30 (0.02) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.10 (0.05) | 0.05 (0.03) | |
| Distance | [pc] | 9910.80 (5157) | 18691.59 (9573) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.034 (0.08) | 1.813 (0.03) | |
| Proper motion (declination) | [mas/yr] | -0.901 (0.07) | -0.931 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.41 (0.03) | 14.41 (0.03) | ||
| H magnitude | 14.37 (0.05) | 14.37 (0.05) | ||
| K magnitude | 14.38 (0.07) | 14.38 (0.07) | ||
| u magnitude | 14.82 (0.004) | 14.82 (0.004) | ||
| g magnitude | 14.26 (0.003) | 14.26 (0.003) | ||
| r magnitude | 14.51 (0.003) | 14.51 (0.003) | ||
| i magnitude | 14.69 (0.003) | 14.69 (0.003) | ||
| z magnitude | 14.87 (0.005) | 14.87 (0.005) | ||
| G magnitude | 14.40 (0.0006) | 14.38 (0.003) | ||
| BP magnitude | 14.37 (0.005) | |||
| RP magnitude | 14.39 (0.003) | |||
| Pan g magnitude | 14.32 (0.003) | |||
| Pan r magnitude | 14.54 (0.005) | |||
| Pan i magnitude | 14.73 (0.003) | |||
| Pan z magnitude | 14.89 (0.002) | |||
| Pan y magnitude | 14.98 (0.005) | |||
| E(B-V) | 0.101 | |||
* 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.