All names: HIC 2499, uvby98 600001559, TIC 80290366, LB 1559, 2MASS J00314165-4725200, uvby98 -004800106, Gaia DR2 4975866534658142976, CD-48 106, HIP 2499, GSC 08024-00844, JL 194, TYC 8024-844-1, UBV M 42239, Gaia DR3 4975866534658142976, GALEX J003141.3-472519, EC 00292-4741, GEN# +6.00001559, JL194
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 31 41.62 | 00 31 41.65 (0.02) | ||
| Declination | -47 25 19.80 | -47 25 20.03 (0.02) | ||
| Spectral type | sdBV | sdB | ||
| Effective temperature | [K] | 25200.0 (1200) | ||
| log(g) | [cgs] | 5.20 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.99 (0.05) | 2.09 (0.04) | |
| Distance | [pc] | 502.08 (13) | 478.29 (9) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 20.929 (0.04) | 20.948 (0.02) | |
| Proper motion (declination) | [mas/yr] | -26.607 (0.06) | -26.381 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.12 | |||
| V magnitude | 12.45 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 12.99 (0.03) | 12.99 (0.03) | ||
| H magnitude | 13.08 (0.03) | 13.08 (0.03) | ||
| K magnitude | 13.16 (0.04) | 13.16 (0.04) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 12.39 (0.0003) | 12.36 (0.003) | ||
| BP magnitude | 12.18 (0.004) | |||
| RP magnitude | 12.63 (0.001) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.009 | |||
* 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.