All names: Gaia DR2 6787278822928715392, EC21044-3149, Gaia EDR3 6787231887526155392, Gaia DR3 6787231887526155392, UCAC4 292-218022, TIC 92749466, Gaia DR3 6787278822928715392, EC 21044-3149, 2MASS J21072651-3137167, GALEX J210726.4-313717
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 21 07 31.03 (0.2) | 21 07 26.52 | 21 07 31.03 | 21 07 26.51 (0.03) | ||
| Declination | -31 37 28.50 (0.2) | -31 37 17.08 | -31 37 28.50 | -31 37 16.69 (0.02) | ||
| Spectral type | sdB | DZ: | sdB | |||
| Effective temperature | [K] | 6600.0 (159) | ||||
| log(g) | [cgs] | 8.22 (0.05) | ||||
| Mass | [M☉] | 0.712 (0.05) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 9.05 (0.3) | 0.85 (0.07) | 9.05 | 0.87 (0.04) | |
| Distance | [pc] | 110.54 (4) | 1180.22 (96) | 110.54 | 1144.95 (51) | |
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 77.723 (0.3) | -11.179 (0.1) | -11.24 (0.04) | ||
| Proper motion (declination) | [mas/yr] | -53.572 (0.3) | -4.879 (0.1) | -4.875 (0.04) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 14.86 | |||||
| V magnitude | 15.01 | |||||
| R magnitude | 15.42 (0.2) | |||||
| I magnitude | ||||||
| J magnitude | 15.41 (0.05) | 15.41 (0.05) | ||||
| H magnitude | 15.44 (0.09) | 15.44 (0.09) | ||||
| K magnitude | 15.51 (0.2) | 15.51 (0.2) | ||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 19.16 (0.003) | 14.98 (0.0004) | 19.16 | 14.96 (0.003) | ||
| BP magnitude | 19.33 (0.02) | 14.84 (0.004) | ||||
| RP magnitude | 18.80 (0.03) | 15.11 (0.001) | ||||
| Pan g magnitude | 14.89 | |||||
| Pan r magnitude | 15.25 | |||||
| Pan i magnitude | 15.44 (0.004) | |||||
| Pan z magnitude | 15.77 | |||||
| Pan y magnitude | 15.94 | |||||
| E(B-V) | 0.075 | |||||
* 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.