All names: KUV23202+2540, USNO-B1.0 1159-00556601, Gaia DR2 2841574174332648064, Gaia DR3 2841574174332648064, TIC 28395252, KUV 23202+2540, 2MASS J23223940+2556401, SDSS J232239.39+255639.8
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 22 39.37 | 23 22 39.39 (0.04) | ||
| Declination | 25 56 40.09 | 25 56 39.93 (0.04) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.21 (0.09) | 0.17 (0.06) | |
| Distance | [pc] | 4675.08 (1980) | 5830.90 (2067) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.887 (0.1) | 3.961 (0.06) | |
| Proper motion (declination) | [mas/yr] | -2.13 (0.1) | -2.18 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.30 | |||
| V magnitude | 16.70 | |||
| R magnitude | 16.60 | |||
| I magnitude | ||||
| J magnitude | 16.51 (0.2) | 16.51 (0.2) | ||
| H magnitude | 16.62 | |||
| K magnitude | 17.14 | |||
| u magnitude | 16.95 (0.009) | 16.95 (0.009) | ||
| g magnitude | 16.36 (0.003) | 16.36 (0.003) | ||
| r magnitude | 16.65 (0.004) | 16.65 (0.004) | ||
| i magnitude | 16.87 (0.005) | 16.87 (0.005) | ||
| z magnitude | 17.05 (0.01) | 17.05 (0.01) | ||
| G magnitude | 16.53 (0.001) | 16.51 (0.003) | ||
| BP magnitude | 16.48 (0.005) | |||
| RP magnitude | 16.54 (0.004) | |||
| Pan g magnitude | 16.43 (0.007) | |||
| Pan r magnitude | 16.65 (0.005) | |||
| Pan i magnitude | 16.88 (0.003) | |||
| Pan z magnitude | 17.05 (0.004) | |||
| Pan y magnitude | 17.10 (0.005) | |||
| E(B-V) | 0.057 | |||
* 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.