All names: Gaia EDR3 6799110667555233408, GALEX J203953.1-271748, TIC 212345278, UCAC4 314-245258, 2MASS J20395317-2717476, EC 20368-2728, Gaia DR3 6799110667555233408, EC20368-2728, Gaia DR2 6799110667555233408
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 39 53.16 (0.05) | 20 39 53.25 | 20 39 53.17 (0.05) | ||
| Declination | -27 17 47.81 (0.03) | -27 17 47.08 | -27 17 47.55 (0.03) | ||
| Spectral type | sdB | 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] | 0.53 (0.06) | 0.40 (0.09) | 0.53 (0.06) | |
| Distance | [pc] | 1876.88 (199) | 2511.93 (556) | 1876.88 (199) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -8.701 (0.06) | -8.198 (0.1) | -8.701 (0.06) | |
| Proper motion (declination) | [mas/yr] | -16.414 (0.04) | -16.237 (0.09) | -16.414 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.61 | ||||
| V magnitude | 15.83 | ||||
| R magnitude | 15.97 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 16.28 (0.1) | 16.28 (0.1) | |||
| H magnitude | 16.29 | ||||
| K magnitude | 17.16 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.78 (0.003) | 15.80 (0.0009) | 15.78 (0.003) | ||
| BP magnitude | 15.66 (0.003) | 15.60 (0.007) | |||
| RP magnitude | 16.02 (0.005) | 16.02 (0.004) | |||
| Pan g magnitude | 15.64 (0.003) | ||||
| Pan r magnitude | 16.03 (0.005) | ||||
| Pan i magnitude | 16.35 (0.002) | ||||
| Pan z magnitude | 16.63 (0.006) | ||||
| Pan y magnitude | 16.78 (0.008) | ||||
| E(B-V) | 0.049 | ||||
* 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.