All names: LBQS 1241+0852B, USNO-B1.0 0985-00224685, Gaia DR2 3710753479188835968, Gaia DR3 3710753479189441024, SDSS J124352.08+083546.3, GALEX J124352.1+083546
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 12 43 52.04 | 12 43 52.09 (0.1) | |
| Declination | 08 35 46.13 | 08 35 46.37 (0.07) | |
| Spectral type | DA | sdB | |
| Effective temperature | [K] | 18551.0 (917) | |
| log(g) | [cgs] | 7.95 (0.07) | |
| Mass | [M☉] | 0.59 (0.06) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 3.07 | 3.07 (0.2) |
| Distance | [pc] | 326.01 | 326.01 (18) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -54.785 (0.2) | |
| Proper motion (declination) | [mas/yr] | -15.383 (0.2) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 18.30 | ||
| V magnitude | |||
| R magnitude | 18.70 | ||
| I magnitude | |||
| J magnitude | 18.92 (0.08) | ||
| H magnitude | 18.90 (0.1) | ||
| K magnitude | |||
| u magnitude | 18.46 (0.02) | ||
| g magnitude | 18.26 (0.02) | ||
| r magnitude | 18.59 (0.02) | ||
| i magnitude | 18.89 (0.02) | ||
| z magnitude | 19.27 (0.06) | ||
| G magnitude | 18.47 | 18.47 (0.003) | |
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.