All names: Gaia DR3 128201921927467264, GALEX J023409.1+290521, 2MASS J02340917+2905219, KUV 02312+2852, Gaia DR2 128201921927467264, TIC 22813769
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 02 34 09.07 | 02 34 09.12 (0.07) | |
| Declination | 29 05 20.88 | 29 05 21.84 (0.06) | |
| Spectral type | DB | sdB | |
| Effective temperature | [K] | 15448.0 (442) | |
| log(g) | [cgs] | 8.13 (0.03) | |
| Mass | [M☉] | 0.667 (0.03) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 8.79 | 8.79 (0.08) |
| Distance | [pc] | 113.74 | 113.74 (1) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -41.242 (0.09) | |
| Proper motion (declination) | [mas/yr] | -60.056 (0.08) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 16.40 | ||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 16.79 (0.1) | ||
| H magnitude | 16.59 (0.2) | ||
| K magnitude | |||
| u magnitude | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 16.69 | 16.69 (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.