All names: WISE J020244.74+535759.4, Gaia DR3 456294237450819712, LAMOSTJ020244.76+535759.5, LAMOST J020244.76+535759.5, UCAC4 720-018112, 2MASS J02024476+5357596, Gaia DR2 456294237450819712
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 02 44.76 | 02 02 44.79 (0.08) | ||
| Declination | 53 57 59.53 | 53 57 59.56 (0.1) | ||
| Spectral type | sdOB | sdB/sdO | ||
| Effective temperature | [K] | 39252.0 (548) | ||
| log(g) | [cgs] | 5.93 (0.07) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.88 (0.2) | 0.41 (0.1) | |
| Distance | [pc] | 533.11 (57) | 2421.89 (801) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.531 (0.5) | -0.843 (0.1) | |
| Proper motion (declination) | [mas/yr] | -5.99 (0.3) | -0.834 (0.2) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.42 (0.06) | |||
| V magnitude | 15.49 (0.04) | |||
| R magnitude | 15.77 (0.3) | |||
| I magnitude | ||||
| J magnitude | 15.04 (0.05) | 15.04 (0.05) | ||
| H magnitude | 14.95 (0.09) | 14.95 (0.09) | ||
| K magnitude | 15.16 (0.1) | 15.16 (0.1) | ||
| u magnitude | ||||
| g magnitude | 15.41 (0.07) | |||
| r magnitude | 15.42 (0.06) | |||
| i magnitude | 15.64 (0.01) | |||
| z magnitude | ||||
| G magnitude | 15.48 (0.004) | 15.50 (0.003) | ||
| BP magnitude | 15.40 (0.005) | |||
| RP magnitude | 15.22 (0.004) | |||
| Pan g magnitude | 15.40 (0.004) | |||
| Pan r magnitude | 15.48 (0.004) | |||
| Pan i magnitude | 15.64 (0.01) | |||
| Pan z magnitude | 15.75 (0.005) | |||
| Pan y magnitude | 15.74 (0.008) | |||
| E(B-V) | 0.110 | |||
* 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.