All names: Gaia EDR3 6910495559133680384, TIC 24122668, GALEX J205723.3-062611, SDSS J205723.31-062611.9, Gaia DR2 6910495559133680384, 2MASS J20572335-0626118, Gaia DR3 6910495559133680384, SDSSJ205723.31-062611.9
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 57 23.31 (0.05) | 20 57 23.32 | 20 57 23.31 | 20 57 23.31 (0.06) | 20 57 23.32 (0.05) | 20 57 23.32 | |||
| Declination | -06 26 11.97 (0.03) | -06 26 11.95 | -06 26 11.90 | -06 26 11.96 (0.04) | -06 26 11.90 (0.03) | -06 26 11.97 | |||
| Spectral type | sdB | sdB | SDB | ||||||
| Effective temperature | [K] | 27938.0 (139) | |||||||
| log(g) | [cgs] | 5.00 (0.002) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.27 (0.06) | 0.17 (0.08) | 0.17 (0.08) | 0.27 (0.06) | ||||
| Distance | [pc] | 3762.94 (812) | 5810.58 (2617) | 5810.58 (2617) | 3763.64 (812) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -5.687413501 (0.06) | -5.651 (0.1) | -5.651 (0.1) | -5.687 (0.06) | -10.4 | |||
| Proper motion (declination) | [mas/yr] | -3.785464618 (0.05) | -3.555 (0.09) | -3.555 (0.09) | -3.785 (0.05) | -0.9 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.13 (0.09) | 16.13 (0.09) | |||||||
| H magnitude | 15.83 (0.2) | 15.83 (0.2) | |||||||
| K magnitude | 15.60 (0.3) | 15.60 (0.3) | |||||||
| u magnitude | 16.72 (0.007) | 16.72 (0.007) | 16.72 (0.007) | 16.71 (0.02) | |||||
| g magnitude | 16.53 (0.004) | 16.53 (0.004) | 16.53 (0.004) | 16.54 (0.01) | |||||
| r magnitude | 16.63 (0.005) | 16.63 (0.005) | 16.63 (0.005) | 16.64 (0.009) | |||||
| i magnitude | 16.69 (0.005) | 16.69 (0.005) | 16.69 (0.005) | 16.70 (0.008) | |||||
| z magnitude | 16.76 (0.01) | 16.75 (0.01) | 16.77 (0.01) | 16.76 (0.02) | |||||
| G magnitude | 16.52 (0.004) | 16.54 (0.0008) | 16.54 | 16.52 (0.003) | |||||
| BP magnitude | 16.58 (0.004) | 16.56 (0.004) | 16.56 | ||||||
| RP magnitude | 16.38 (0.004) | 16.39 (0.004) | 16.39 | ||||||
| Pan g magnitude | 16.56 (0.004) | 16.56 (0.004) | |||||||
| Pan r magnitude | 16.63 (0.007) | 16.63 (0.007) | |||||||
| Pan i magnitude | 16.72 (0.003) | 16.72 (0.003) | |||||||
| Pan z magnitude | 16.79 (0.006) | 16.79 (0.006) | |||||||
| Pan y magnitude | 16.82 (0.009) | 16.82 (0.009) | |||||||
| E(B-V) | 0.038 | ||||||||
* 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.