All names: FBS B 482, KUV 07315+3428, GALEX J073446.1+342121, UCAC4 622-040149, SDSS J073446.15+342120.9, 2MASS J07344614+3421207, TIC 239186520, Ton 826, Gaia DR2 893594510306886784, Gaia DR3 893594510306886784, LAMOST J073446.14+342120.8, Ton826, UCAC2 43782752, FBS 0731+345
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 34 46.14 | 07 34 46.15 (0.04) | ||
| Declination | 34 21 20.90 | 34 21 20.92 (0.04) | ||
| Spectral type | sdB | sdBHe6 | ||
| Effective temperature | [K] | 27699.0 (316) | ||
| log(g) | [cgs] | 5.36 (0.04) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.42 (0.07) | 0.49 (0.06) | |
| Distance | [pc] | 2375.86 (421) | 2050.02 (241) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.47 (0.1) | -0.387 (0.06) | |
| Proper motion (declination) | [mas/yr] | -2.473 (0.1) | -2.465 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.31 (0.04) | |||
| V magnitude | 15.34 (0.03) | |||
| R magnitude | 15.84 (0.04) | |||
| I magnitude | ||||
| J magnitude | 15.98 (0.08) | 15.98 (0.08) | ||
| H magnitude | 16.12 (0.2) | 16.12 (0.2) | ||
| K magnitude | 15.38 | |||
| u magnitude | 15.21 (0.004) | 15.21 (0.004) | ||
| g magnitude | 15.21 (0.003) | 15.21 (0.003) | ||
| r magnitude | 15.62 (0.004) | 15.62 (0.004) | ||
| i magnitude | 15.93 (0.004) | 15.93 (0.004) | ||
| z magnitude | 16.19 (0.008) | 16.19 (0.008) | ||
| G magnitude | 15.46 (0.001) | 15.44 (0.003) | ||
| BP magnitude | 15.30 (0.01) | |||
| RP magnitude | 15.61 (0.004) | |||
| Pan g magnitude | 15.31 (0.0007) | |||
| Pan r magnitude | 15.64 (0.006) | |||
| Pan i magnitude | 15.96 (0.002) | |||
| Pan z magnitude | 16.20 (0.004) | |||
| Pan y magnitude | 16.34 (0.005) | |||
| E(B-V) | 0.036 | |||
* 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.