All names: UCAC4 436-057115, LAMOST J130013.83-024952.5, FBS 1257-026, 2MASS J13001382-0249525, PG1257-026, Gaia DR3 3685172413454924544, GALEX J130013.8-024952, SDSS J130013.83-024952.6, TIC 175740559, Gaia DR2 3685172413454924544, PG 1257-026, [HMD92] 862-4
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 00 13.82 | 13 00 13.83 (0.02) | ||
| Declination | -02 49 52.28 | -02 49 52.57 (0.01) | ||
| Spectral type | sdB+MS | sdB+F8V | ||
| 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] | 0.60 (0.05) | 0.70 (0.03) | |
| Distance | [pc] | 1655.63 (146) | 1423.49 (51) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.336 (0.08) | -0.381 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.54 (0.04) | -3.572 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.19 (0.03) | |||
| V magnitude | 14.04 (0.02) | |||
| R magnitude | 14.19 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.53 (0.02) | 13.53 (0.02) | ||
| H magnitude | 13.32 (0.03) | 13.32 (0.03) | ||
| K magnitude | 13.26 (0.03) | 13.26 (0.03) | ||
| u magnitude | 14.31 (0.003) | 14.31 (0.003) | ||
| g magnitude | 13.99 (0.003) | 14.05 (0.02) | ||
| r magnitude | 14.04 (0.003) | 14.08 (0.02) | ||
| i magnitude | 14.05 (0.004) | 14.13 (0.02) | ||
| z magnitude | 14.16 (0.004) | 14.16 (0.004) | ||
| G magnitude | 13.98 (0.0004) | 13.96 (0.003) | ||
| BP magnitude | 14.04 (0.004) | |||
| RP magnitude | 13.78 (0.001) | |||
| Pan g magnitude | 14.05 (0.001) | |||
| Pan r magnitude | 14.06 (0.002) | |||
| Pan i magnitude | 14.13 (0.006) | |||
| Pan z magnitude | 14.19 (0.004) | |||
| Pan y magnitude | 14.22 (0.002) | |||
| E(B-V) | 0.024 | |||
* 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.