All names: UCAC2 41120920, HS 2201+2610, GALEX J220412.1+262506, GSC 02212-01369, V* V391 Peg, Gaia DR3 1891930796082743680, 2MASS J22041211+2625078, HS2201+2610, UCAC4 583-127427, Gaia DR2 1891930796082743680, TIC 397595169, Gaia EDR3 1891930791791600000
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 04 11.63 (0.4) | 22 04 12.12 | 22 04 12.10 (0.02) | ||
| Declination | 26 25 07.82 (0.5) | 26 25 08.14 | 26 25 07.82 (0.03) | ||
| Spectral type | sdBV | sdB | |||
| Effective temperature | [K] | 29300.0 (700) | |||
| 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] | 1.01 (0.6) | 0.81 (0.05) | 0.74 (0.03) | |
| Distance | [pc] | 990.79 (544) | 1238.70 (82) | 1353.55 (60) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -5.75 (0.6) | -4.822 (0.1) | -4.906 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.308 (0.6) | -3.797 (0.09) | -3.703 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.41 (0.03) | ||||
| V magnitude | 14.61 (0.05) | ||||
| R magnitude | 15.00 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.17 (0.05) | 15.17 (0.05) | |||
| H magnitude | 15.16 (0.1) | 15.16 (0.1) | |||
| K magnitude | 15.38 (0.2) | 15.38 (0.2) | |||
| u magnitude | 14.16 (0.005) | ||||
| g magnitude | 14.29 (0.004) | 14.38 (0.03) | |||
| r magnitude | 13.33 (0.001) | 14.82 (0.04) | |||
| i magnitude | 15.02 (0.005) | 15.13 (0.09) | |||
| z magnitude | 15.25 (0.006) | ||||
| G magnitude | 20.28 (0.006) | 14.59 (0.0006) | 14.57 (0.003) | ||
| BP magnitude | 20.56 (0.07) | 14.41 (0.01) | |||
| RP magnitude | 19.85 (0.06) | 14.81 (0.002) | |||
| Pan g magnitude | 14.43 (0.005) | ||||
| Pan r magnitude | 14.80 (0.003) | ||||
| Pan i magnitude | 15.15 (0.002) | ||||
| Pan z magnitude | 15.41 (0.004) | ||||
| Pan y magnitude | 15.57 (0.006) | ||||
| E(B-V) | 0.064 | ||||
* 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.