All names: Gaia EDR3 3206215733828216960, GALEX J043107.5-012218, Gaia DR3 3206215733828216960, Gaia DR2 3206215733828216960, GALEXJ04311-0122, 2MASS J04310759-0122189, FBS 0428-015, TIC 248682910
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 04 31 07.59 (0.03) | 04 31 07.58 | 04 31 07.59 (0.03) | ||
| Declination | -01 22 19.08 (0.02) | -01 22 18.82 | -01 22 18.99 (0.02) | ||
| Spectral type | sdOB | sdOB | |||
| 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] | 0.84 (0.04) | 0.87 (0.07) | 0.84 (0.04) | |
| Distance | [pc] | 1191.75 (64) | 1153.93 (88) | 1191.75 (64) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.945 (0.05) | 1.92 (0.1) | 1.945 (0.05) | |
| Proper motion (declination) | [mas/yr] | -5.129 (0.04) | -4.895 (0.07) | -5.129 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.59 | ||||
| V magnitude | 14.90 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.81 (0.05) | 15.81 (0.05) | |||
| H magnitude | 15.86 (0.1) | 15.86 (0.1) | |||
| K magnitude | 15.71 (0.2) | 15.71 (0.2) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.17 (0.003) | 15.19 (0.0007) | 15.17 (0.003) | ||
| BP magnitude | 15.03 (0.004) | 14.99 (0.009) | |||
| RP magnitude | 15.45 (0.005) | 15.45 (0.004) | |||
| Pan g magnitude | 15.01 (0.002) | ||||
| Pan r magnitude | 15.42 (0.004) | ||||
| Pan i magnitude | 15.77 (0.002) | ||||
| Pan z magnitude | 16.06 (0.002) | ||||
| Pan y magnitude | 16.22 (0.003) | ||||
| E(B-V) | 0.039 | ||||
* 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.