All names: TIC 387619726, UCAC2 25213814, DENIS J200003.6-173733, UCAC4 362-192037, WISEA J200003.62-173734.0, WISE J200003.62-173733.9, GALEX J200003.5-173734, 2MASS J20000361-1737339, GALEXJ20000-1737, Gaia DR3 6870849781179445504, Gaia EDR3 6870853217150203264, Gaia DR2 6870849781179445504
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 00 04.84 (0.6) | 20 00 03.57 | 20 00 03.61 (0.02) | ||
| Declination | -17 35 49.05 (0.5) | -17 37 34.16 | -17 37 33.94 (0.02) | ||
| 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] | 1.05 (0.7) | 1.47 (0.04) | 1.45 (0.03) | |
| Distance | [pc] | 956.30 (604) | 679.12 (20) | 691.09 (12) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 7.299 (0.8) | 6.485 (0.07) | 6.425 (0.03) | |
| Proper motion (declination) | [mas/yr] | -5.714 (0.6) | -9.326 (0.04) | -9.267 (0.02) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.09 (0.02) | ||||
| V magnitude | 14.16 (0.01) | ||||
| R magnitude | 14.49 (0.1) | ||||
| I magnitude | 14.25 (0.03) | ||||
| J magnitude | 14.41 (0.04) | 14.41 (0.04) | |||
| H magnitude | 14.56 (0.06) | 14.56 (0.06) | |||
| K magnitude | 14.54 (0.08) | 14.54 (0.08) | |||
| u magnitude | |||||
| g magnitude | 14.00 (0.01) | ||||
| r magnitude | 14.34 (0.01) | ||||
| i magnitude | 14.74 (0.1) | ||||
| z magnitude | |||||
| G magnitude | 20.47 (0.007) | 14.13 (0.0006) | 14.12 (0.003) | ||
| BP magnitude | 20.63 (0.1) | 13.98 (0.009) | |||
| RP magnitude | 19.81 (0.1) | 14.24 (0.002) | |||
| Pan g magnitude | 14.05 (0.005) | ||||
| Pan r magnitude | 14.33 (0.002) | ||||
| Pan i magnitude | 14.59 (0.002) | ||||
| Pan z magnitude | 14.79 (0.002) | ||||
| Pan y magnitude | 14.93 (0.007) | ||||
| E(B-V) | 0.174 | ||||
* 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.