All names: Gaia DR2 6362393273295440640, JL 54, Gaia DR3 6362393273295440640, EC20286-7752, EC 20286-7752, TIC 404268044, GALEX J203515.0-774212, 2MASS J20351497-7742127
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 35 15.02 | 20 35 14.92 (0.03) | ||
| Declination | -77 42 12.96 | -77 42 12.78 (0.03) | ||
| Spectral type | He-sdO | sdOHe | ||
| 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] | 0.17 (0.05) | 0.16 (0.04) | |
| Distance | [pc] | 5810.58 (1665) | 6402.05 (1504) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.091 (0.07) | -2.043 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.053 (0.08) | -3.036 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.96 | |||
| V magnitude | 16.19 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.55 (0.1) | 16.55 (0.1) | ||
| H magnitude | 16.34 | |||
| K magnitude | 16.32 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.12 (0.001) | 16.09 (0.003) | ||
| BP magnitude | 15.94 (0.008) | |||
| RP magnitude | 16.26 (0.004) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.092 | |||
* 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.