All names: 2MASS J04200262-5404140, FAUST 548, GALEX J042002.4-540413, EC 04188-5411, [BBW2000] FD 34, GALEXJ04200-5404, Gaia DR3 4779232318983782784, USNO-A1.0 0300-01307552, Gaia DR2 4779232318983782784, TIC 396695965
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 04 20 02.41 | 04 20 02.62 (0.01) | ||
| Declination | -54 04 13.50 | -54 04 14.05 (0.01) | ||
| Spectral type | sdO+MS | sdO+G | ||
| 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] | 0.31 (0.01) | 0.32 (0.01) | |
| Distance | [pc] | 3243.59 (154) | 3153.58 (115) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 6.81 (0.02) | 6.838 (0.01) | |
| Proper motion (declination) | [mas/yr] | 2.81 (0.03) | 2.781 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.30 | |||
| V magnitude | 13.96 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 12.88 (0.03) | 12.88 (0.03) | ||
| H magnitude | 12.51 (0.02) | 12.51 (0.02) | ||
| K magnitude | 12.46 (0.02) | 12.46 (0.02) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 13.84 (0.001) | 13.82 (0.003) | ||
| BP magnitude | 14.03 (0.005) | |||
| RP magnitude | 13.44 (0.004) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.012 | |||
* 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.