All names: Gaia EDR3 1357373325266285952, V* V1211 Her, SDSSJ164214.21+425234.0, 2MASS J16421421+4252338, Gaia DR3 1357373325266285952, SDSS J164214.21+425234.0, TIC 115280751, Gaia DR2 1357373325266285952, SDSS J164214.20+425234.0, GALEX J164214.3+425233, SDSS J164214.21+425233.9
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 42 14.20 (0.02) | 16 42 14.21 | 16 42 14.21 | 16 42 14.20 (0.04) | 16 42 14.21 (0.02) | 16 42 14.22 | |||
| Declination | 42 52 33.91 (0.03) | 42 52 34.02 | 42 52 34.00 | 42 52 33.91 (0.04) | 42 52 34.01 (0.03) | 42 52 33.97 | |||
| Spectral type | sdBV+G0 | sdB | SDB | ||||||
| Effective temperature | [K] | 32400.0 | 7055.0 (19) | ||||||
| log(g) | [cgs] | 5.80 | 7.03 (0.05) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.32 (0.03) | 0.34 (0.05) | 0.34 (0.05) | 0.32 (0.03) | ||||
| Distance | [pc] | 3110.19 (272) | 2982.40 (414) | 2981.99 (414) | 3110.42 (272) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -11.42858156 (0.03) | -11.555 (0.08) | -11.5548567 (0.08) | -11.429 (0.03) | -11.5 | |||
| Proper motion (declination) | [mas/yr] | -6.248995714 (0.03) | -6.244 (0.09) | -6.243632668 (0.09) | -6.249 (0.04) | -5.3 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | 15.71 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.15 (0.04) | 15.15 (0.04) | |||||||
| H magnitude | 14.96 (0.09) | 14.96 (0.09) | |||||||
| K magnitude | 14.72 (0.1) | 14.72 (0.1) | |||||||
| u magnitude | 15.83 (0.005) | 15.83 (0.005) | 15.83 (0.005) | 15.83 (0.01) | |||||
| g magnitude | 15.66 (0.004) | 15.66 (0.004) | 15.66 (0.004) | 15.68 (0.02) | |||||
| r magnitude | 15.72 (0.004) | 15.72 (0.004) | 15.72 (0.004) | 15.71 (0.01) | |||||
| i magnitude | 15.75 (0.004) | 15.75 (0.004) | 15.75 (0.004) | 15.75 (0.01) | |||||
| z magnitude | 15.82 (0.006) | 15.82 (0.006) | 15.82 (0.006) | 15.85 (0.03) | |||||
| G magnitude | 15.62 (0.002) | 15.64 (0.0008) | 15.64 | 15.62 (0.003) | |||||
| BP magnitude | 15.71 (0.002) | 15.68 (0.005) | 15.68 | ||||||
| RP magnitude | 15.43 (0.002) | 15.44 (0.004) | 15.44 | ||||||
| Pan g magnitude | 15.71 (0.003) | 15.71 (0.003) | |||||||
| Pan r magnitude | 15.73 (0.003) | 15.73 (0.003) | |||||||
| Pan i magnitude | 15.77 (0.003) | 15.77 (0.003) | |||||||
| Pan z magnitude | 15.84 (0.003) | 15.84 (0.003) | |||||||
| Pan y magnitude | 15.89 (0.007) | 15.89 (0.007) | |||||||
| E(B-V) | 0.020 | ||||||||
* 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.