All names: GALEX J071042.1+665541, GSC 04123-00265, TIC 99641129, HS 0705+6700, Gaia DR3 1102107819544067456, FBS B 763, V* V470 Cam, WD 0705+670, Gaia EDR3 1102107819544067456, Gaia DR2 1102107819544067456, FBS 0705+670, 2MASS J07104206+6655435, HS0705+6700
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 07 10 42.05 (0.01) | 07 10 42.09 | 07 10 42.05 (0.03) | 07 10 42.05 (0.01) | 07 10 41.98 | ||
| Declination | 66 55 43.40 (0.02) | 66 55 43.97 | 66 55 43.40 (0.04) | 66 55 43.52 (0.02) | 66 55 42.24 | ||
| Spectral type | sdB+dM | sdB+dM | WD/M | ||||
| Effective temperature | [K] | 30200.0 (1000) | |||||
| log(g) | [cgs] | 5.70 (0.2) | |||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 0.79 (0.03) | 0.81 (0.05) | 0.81 (0.05) | 0.79 (0.03) | ||
| Distance | [pc] | 1266.56 (51) | 1241.31 (77) | 1241.31 (77) | 1266.62 (51) | ||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -0.454259696 (0.02) | -0.409 (0.06) | -0.409 (0.06) | -0.454 (0.02) | ||
| Proper motion (declination) | [mas/yr] | -7.705052864 (0.03) | -7.637 (0.07) | -7.637 (0.07) | -7.705 (0.03) | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | yes | ||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 15.10 (0.04) | 15.10 (0.04) | |||||
| H magnitude | 15.23 (0.09) | 15.23 (0.09) | |||||
| K magnitude | 15.30 (0.1) | 15.30 (0.1) | |||||
| u magnitude | 14.26 (0.004) | ||||||
| g magnitude | 14.74 (0.003) | ||||||
| r magnitude | 14.72 (0.004) | ||||||
| i magnitude | 15.03 (0.004) | ||||||
| z magnitude | 15.32 (0.006) | ||||||
| G magnitude | 14.62 (0.01) | 14.62 (0.005) | 14.62 | 14.62 (0.005) | |||
| BP magnitude | 14.51 (0.01) | 14.45 (0.01) | 14.45 | ||||
| RP magnitude | 14.87 (0.02) | 14.79 (0.02) | 14.79 | ||||
| Pan g magnitude | 14.49 (0.01) | ||||||
| Pan r magnitude | 14.85 (0.01) | ||||||
| Pan i magnitude | 15.12 (0.01) | ||||||
| Pan z magnitude | 15.38 (0.02) | ||||||
| Pan y magnitude | 15.54 (0.02) | ||||||
| E(B-V) | 0.058 | ||||||
* 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.