All names: LAMOST J024253.40+064745.5, UCAC4 484-003671, Gaia DR2 18690877333956992, PG0240+066, PG 0240+066, [DWS97] Cet 1, Gaia DR3 18690877333956992, SDSS J024253.41+064745.4, GALEX J024253.3+064745
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 42 53.41 | 02 42 53.42 (0.07) | ||
| Declination | 06 47 45.54 | 06 47 45.55 (0.06) | ||
| Spectral type | sdB | sdB/sdO | ||
| Effective temperature | [K] | 29530.0 (313) | ||
| log(g) | [cgs] | 5.84 (0.07) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.51 (0.1) | 0.34 (0.07) | |
| Distance | [pc] | 1943.26 (414) | 2931.69 (639) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.96 (0.2) | -1.071 (0.1) | |
| Proper motion (declination) | [mas/yr] | -1.251 (0.1) | -1.464 (0.07) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.29 (0.05) | |||
| V magnitude | 16.09 (0.01) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | 16.80 (0.03) | |||
| K magnitude | 16.89 (0.06) | |||
| u magnitude | 16.45 (0.007) | |||
| g magnitude | 16.38 (0.005) | |||
| r magnitude | 16.68 (0.005) | |||
| i magnitude | 16.91 (0.006) | |||
| z magnitude | 17.15 (0.01) | |||
| G magnitude | 16.56 (0.003) | 16.52 (0.003) | ||
| BP magnitude | 16.45 (0.01) | |||
| RP magnitude | 16.60 (0.009) | |||
| Pan g magnitude | 16.43 (0.005) | |||
| Pan r magnitude | 16.67 (0.004) | |||
| Pan i magnitude | 16.92 (0.004) | |||
| Pan z magnitude | 17.13 (0.003) | |||
| Pan y magnitude | 17.24 (0.005) | |||
| E(B-V) | 0.085 | |||
* 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.