All names: TYC 7493-652-1, Gaia DR3 6586323213022942464, TIC 320965274, Gaia DR1 6586323208725599616, 2MASS J21402289-3714159, GALEX J214022.8-371414, GALEXJ214022.87-371414.05, Gaia EDR3 6586323487898790656, EC 21373-3727, Gaia DR2 6586323213022942464
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 40 19.46 (0.7) | 21 40 22.94 | 21 40 22.90 (0.02) | ||
| Declination | -37 13 07.35 (0.7) | -37 14 15.72 | -37 14 15.80 (0.02) | ||
| Spectral type | sdB+F6V | sdB+F6V | |||
| Effective temperature | [K] | 32660.0 (2610) | |||
| log(g) | [cgs] | 5.80 (0.3) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.52 (1) | 1.20 (0.07) | 1.46 (0.03) | |
| Distance | [pc] | 658.80 (457) | 831.88 (45) | 683.39 (16) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.32 (0.8) | -9.721 (0.09) | -10.167 (0.03) | |
| Proper motion (declination) | [mas/yr] | -9.589 (0.8) | 3.428 (0.09) | 2.93 (0.02) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.57 (0.2) | ||||
| V magnitude | 12.84 (0.2) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 12.11 (0.03) | 12.11 (0.03) | |||
| H magnitude | 11.90 (0.03) | 11.90 (0.03) | |||
| K magnitude | 11.82 (0.03) | 11.82 (0.03) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 20.59 (0.008) | 12.66 (0.0005) | 12.65 (0.003) | ||
| BP magnitude | 20.87 (0.08) | 12.70 (0.005) | |||
| RP magnitude | 20.19 (0.1) | 12.45 (0.0008) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.021 | ||||
* 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.