All names: UCAC4 493-003175, GALEX J021021.8+083059, GALEX J021021.8+083058, Gaia DR2 2521835952459036544, GALEXJ02103+0830, 2MASS J02102193+0830576, Gaia DR3 2521835956752748928
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 10 21.90 | 02 10 21.93 (0.03) | ||
| Declination | 08 30 56.97 | 08 30 57.48 (0.03) | ||
| Spectral type | sdB+F2IV | sdB+F2IV | ||
| Effective temperature | [K] | 34430.0 (1380) | ||
| log(g) | [cgs] | 5.74 (0.3) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.84 (0.04) | 0.84 (0.04) | |
| Distance | [pc] | 1186.24 (52) | 1184.27 (54) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 10.638 (0.07) | 10.638 (0.04) | |
| Proper motion (declination) | [mas/yr] | 7.809 (0.06) | 7.771 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.69 (0.02) | |||
| V magnitude | 13.64 (0.04) | |||
| R magnitude | 13.49 (0.09) | |||
| I magnitude | ||||
| J magnitude | 12.83 (0.02) | 12.83 (0.02) | ||
| H magnitude | 12.68 (0.03) | 12.68 (0.03) | ||
| K magnitude | 12.65 (0.03) | 12.65 (0.03) | ||
| u magnitude | ||||
| g magnitude | 13.52 (0.01) | |||
| r magnitude | 13.60 (0.01) | |||
| i magnitude | 13.54 (0.01) | |||
| z magnitude | ||||
| G magnitude | 13.39 (0.0004) | 13.38 (0.003) | ||
| BP magnitude | 13.50 (0.003) | |||
| RP magnitude | 13.15 (0.002) | |||
| Pan g magnitude | 13.51 (0.003) | |||
| Pan r magnitude | 13.47 | |||
| Pan i magnitude | 13.50 | |||
| Pan z magnitude | 13.55 (0.002) | |||
| Pan y magnitude | 13.56 (0.005) | |||
| E(B-V) | 0.067 | |||
* 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.