All names: UCAC2 4709395, UCAC4 143-005478, EC 05201-6132, 2MASS J05204417-6129505, TIC 309791758, WISEA J052044.19-612950.4, GALEX J052044.1-612948, Gaia DR2 4760884321775270656, GALEXJ05207-6129, WISE J052044.19-612950.5, Gaia EDR3 4760884321775270656, Gaia DR3 4760884321775270656
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 05 20 44.18 (0.03) | 05 20 43.99 | 05 20 44.18 (0.03) | ||
| Declination | -61 29 50.29 (0.03) | -61 29 50.19 | -61 29 50.46 (0.03) | ||
| 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] | 0.82 (0.03) | 0.86 (0.05) | 0.82 (0.03) | |
| Distance | [pc] | 1223.84 (47) | 1160.63 (63) | 1223.84 (47) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 0.21 (0.04) | 0.276 (0.1) | 0.21 (0.04) | |
| Proper motion (declination) | [mas/yr] | 10.36 (0.04) | 10.53 (0.09) | 10.36 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.27 (0.03) | ||||
| V magnitude | 14.57 (0.01) | ||||
| R magnitude | 14.79 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.13 (0.05) | 15.13 (0.05) | |||
| H magnitude | 15.22 (0.09) | 15.22 (0.09) | |||
| K magnitude | 14.98 (0.1) | 14.98 (0.1) | |||
| u magnitude | |||||
| g magnitude | 14.32 (0.01) | ||||
| r magnitude | 14.79 (0.02) | ||||
| i magnitude | 15.36 (0.5) | ||||
| z magnitude | |||||
| G magnitude | 14.53 (0.003) | 14.54 (0.0007) | 14.53 (0.003) | ||
| BP magnitude | 14.40 (0.003) | 14.36 (0.009) | |||
| RP magnitude | 14.79 (0.004) | 14.78 (0.004) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.020 | ||||
* 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.