All names: Gaia DR3 3675067076961979264, TD1 31073, TYC 5528-629-1, uvby98 -000703477 V, V* HW Vir, PPM 195791, 2MASS J12442024-0840168, UCAC4 407-055365, HWVir, HIP 62157, Gaia EDR3 3675067076961979264, BD-07 3477, EPIC 228755638, GSC 05528-00629, PG 1241-084, HIC 62157, NSVS 15972828, HE 1241-0823, Gaia DR2 3675067076961979264, TIC 156618553, [TFW97] J124420.24-084016.87, 1SWASP J124420.23-084016.8
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 44 20.25 (0.05) | 12 44 20.21 | 12 44 20.24 (0.05) | ||
| Declination | -08 40 17.10 (0.03) | -08 40 15.93 | -08 40 16.85 (0.03) | ||
| Spectral type | sdB+dM | sdB2VIIHe3 | |||
| Effective temperature | [K] | 28500.0 (500) | |||
| log(g) | [cgs] | 5.63 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 5.77 (0.06) | 5.80 (0.08) | 5.77 (0.06) | |
| Distance | [pc] | 173.23 (2) | 172.50 (3) | 173.23 (2) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 9.009 (0.09) | 8.969 (0.2) | 9.009 (0.09) | |
| Proper motion (declination) | [mas/yr] | -15.829 (0.06) | -15.677 (0.1) | -15.829 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 10.46 (0.04) | ||||
| V magnitude | 10.59 (0.06) | ||||
| R magnitude | 10.89 (0.05) | ||||
| I magnitude | |||||
| J magnitude | 10.97 (0.03) | 10.97 (0.03) | |||
| H magnitude | 11.09 (0.02) | 11.09 (0.02) | |||
| K magnitude | 11.12 (0.02) | 11.12 (0.02) | |||
| u magnitude | |||||
| g magnitude | 10.51 (0.01) | ||||
| r magnitude | 10.89 (0.05) | ||||
| i magnitude | 11.27 (0.05) | ||||
| z magnitude | 11.88 (0.003) | ||||
| G magnitude | 10.59 (0.005) | 10.61 (0.006) | 10.59 (0.005) | ||
| BP magnitude | 10.47 (0.01) | 10.46 (0.02) | |||
| RP magnitude | 10.83 (0.02) | 10.87 (0.03) | |||
| Pan g magnitude | 10.41 | ||||
| Pan r magnitude | 10.80 | ||||
| Pan i magnitude | 11.12 | ||||
| Pan z magnitude | 11.35 | ||||
| Pan y magnitude | 11.53 | ||||
| E(B-V) | 0.017 | ||||
* 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.