All names: GALEX J071310.7+394347, FBS0709+398, Gaia EDR3 946854127706814208, Gaia DR3 946854063282879488, 2MASS J07131074+3943470, TIC 321247750, FBS 0709+398, Gaia DR2 946854063282879488, FBS B 42
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 13 11.22 (0.5) | 07 13 10.72 | 07 13 10.75 (0.04) | ||
| Declination | 39 44 47.33 (0.4) | 39 43 47.20 | 39 43 46.95 (0.03) | ||
| Spectral type | sd | sdB | |||
| 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] | 1.38 (0.6) | 0.20 (0.06) | 0.14 (0.04) | |
| Distance | [pc] | 725.27 (307) | 5010.02 (1453) | 7262.16 (2099) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 2.396 (0.7) | 2.263 (0.1) | 2.031 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.837 (0.6) | -5.651 (0.08) | -5.491 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.58 (0.07) | 15.58 (0.07) | |||
| H magnitude | 15.62 (0.1) | 15.62 (0.1) | |||
| K magnitude | 15.67 (0.2) | 15.67 (0.2) | |||
| u magnitude | 16.60 (0.007) | ||||
| g magnitude | 15.57 (0.003) | ||||
| r magnitude | 15.77 (0.004) | ||||
| i magnitude | 15.94 (0.004) | ||||
| z magnitude | 16.10 (0.008) | ||||
| G magnitude | 20.10 (0.007) | 15.68 (0.0008) | 15.66 (0.003) | ||
| BP magnitude | 20.53 (0.09) | 15.67 (0.003) | |||
| RP magnitude | 19.75 (0.1) | 15.63 (0.006) | |||
| Pan g magnitude | 15.61 (0.004) | ||||
| Pan r magnitude | 15.79 (0.001) | ||||
| Pan i magnitude | 15.97 (0.003) | ||||
| Pan z magnitude | 16.12 (0.002) | ||||
| Pan y magnitude | 16.14 (0.008) | ||||
| E(B-V) | 0.051 | ||||
* 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.