All names: BPS CS 30338-0056, Gaia DR2 2761878827068009088, 2MASS J23231388+0856426, GALEX J232313.8+085642, Gaia DR3 2761878827068009088, HS 2320+0840, KUV 813-21, PB 5358, KUV 23207+0840, PG2320+087, [RRW93] Pn23l1-44, PG 2320+087, TIC 354265130
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 23 13.84 | 23 23 13.87 (0.03) | ||
| Declination | 08 56 43.85 | 08 56 42.54 (0.02) | ||
| 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] | 0.50 (0.06) | 0.67 (0.03) | |
| Distance | [pc] | 1993.22 (224) | 1484.12 (67) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 6.843 (0.09) | 6.723 (0.03) | |
| Proper motion (declination) | [mas/yr] | -24.314 (0.06) | -24.365 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.61 | |||
| V magnitude | 14.63 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.23 (0.03) | 14.23 (0.03) | ||
| H magnitude | 14.01 (0.05) | 14.01 (0.05) | ||
| K magnitude | 13.94 (0.06) | 13.94 (0.06) | ||
| u magnitude | 14.62 (0.004) | |||
| g magnitude | 14.48 (0.003) | |||
| r magnitude | 14.62 (0.004) | |||
| i magnitude | 14.71 (0.005) | |||
| z magnitude | 14.82 (0.005) | |||
| G magnitude | 14.52 (0.0005) | 14.50 (0.003) | ||
| BP magnitude | 14.51 (0.004) | |||
| RP magnitude | 14.40 (0.002) | |||
| Pan g magnitude | 14.51 (0.003) | |||
| Pan r magnitude | 14.63 (0.002) | |||
| Pan i magnitude | 14.74 (0.003) | |||
| Pan z magnitude | 14.84 (0.0005) | |||
| Pan y magnitude | 14.87 (0.007) | |||
| E(B-V) | 0.051 | |||
* 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.