All names: Gaia DR3 6349470330881239424, UCAC4 049-019767, GALEX J202608.2-802147, Gaia DR2 6349470330881239424, EC 20181-8031, JL 51, EC20181-8031
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 26 08.45 | 20 26 08.42 (0.03) | ||
| Declination | -80 21 47.20 | -80 21 47.57 (0.03) | ||
| Spectral type | sdB+F | sdB+F | ||
| 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] | 0.55 (0.05) | 0.57 (0.03) | |
| Distance | [pc] | 1822.16 (172) | 1750.39 (107) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.946 (0.08) | 4.956 (0.04) | |
| Proper motion (declination) | [mas/yr] | -5.309 (0.1) | -5.295 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.20 | |||
| V magnitude | 16.05 | |||
| R magnitude | 16.44 (0.3) | |||
| I magnitude | ||||
| J magnitude | 16.10 (0.09) | |||
| H magnitude | 15.73 (0.2) | |||
| K magnitude | 15.60 (0.2) | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.30 (0.002) | 16.27 (0.003) | ||
| BP magnitude | 16.16 (0.008) | |||
| RP magnitude | 16.33 (0.01) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.157 | |||
* 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.