All names: USNO-A1.0 0375-38688655, TIC 101512805, EC 20022-4824, [BBW2000] FT 28, Gaia DR2 6670587997468997376, 2MASS J20055578-4816105, Gaia DR3 6670587997468997376, GALEX J200555.6-481610, FAUST 4566, GALEXJ20059-4816
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 05 55.61 | 20 05 55.79 (0.03) | ||
| Declination | -48 16 10.37 | -48 16 10.53 (0.03) | ||
| Spectral type | sdO | sdO | ||
| 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] | 0.78 (0.05) | 0.85 (0.04) | |
| Distance | [pc] | 1286.67 (86) | 1178.83 (49) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 9.228 (0.08) | 9.209 (0.04) | |
| Proper motion (declination) | [mas/yr] | -7.866 (0.06) | -7.893 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.21 | |||
| V magnitude | 13.53 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.07 (0.03) | 14.07 (0.03) | ||
| H magnitude | 14.32 (0.04) | 14.32 (0.04) | ||
| K magnitude | 14.22 (0.06) | 14.22 (0.06) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 13.45 (0.0009) | 13.43 (0.003) | ||
| BP magnitude | 13.19 (0.008) | |||
| RP magnitude | 13.74 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.028 | |||
* 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.