All names: UCAC4 581-130575, LAMOSTJ230233.84+260257.9, 2MASS J23023384+2602579, SDSS J230233.84+260257.9, LAMOST J230233.84+260257.9, GALEX J230233.8+260258, Gaia DR2 2843804263088749824, Gaia DR3 2843804263088749824
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 02 33.84 | 23 02 33.84 (0.02) | ||
| Declination | 26 02 57.90 | 26 02 57.96 (0.02) | ||
| Spectral type | sdB+MS | 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] | 0.55 (0.03) | 0.59 (0.02) | |
| Distance | [pc] | 1821.83 (99) | 1685.49 (68) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.027 (0.05) | -0.113 (0.02) | |
| Proper motion (declination) | [mas/yr] | -3.534 (0.04) | -3.625 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.05 (0.03) | |||
| V magnitude | 14.68 (0.04) | |||
| R magnitude | 14.72 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.81 (0.02) | |||
| H magnitude | 13.60 (0.03) | |||
| K magnitude | 13.53 (0.04) | |||
| u magnitude | 15.34 (0.005) | 15.34 (0.005) | ||
| g magnitude | 14.79 (0.004) | 14.82 (0.04) | ||
| r magnitude | 14.60 (0.004) | 14.59 (0.05) | ||
| i magnitude | 14.95 (0.002) | 14.58 (0.04) | ||
| z magnitude | 14.56 (0.005) | 14.56 (0.005) | ||
| G magnitude | 14.58 (0.0004) | 14.57 (0.003) | ||
| BP magnitude | 14.77 (0.002) | |||
| RP magnitude | 14.23 (0.002) | |||
| Pan g magnitude | 14.77 (0.0006) | |||
| Pan r magnitude | 14.59 (0.005) | |||
| Pan i magnitude | 14.56 (0.002) | |||
| Pan z magnitude | 14.60 (0.002) | |||
| Pan y magnitude | 14.59 (0.003) | |||
| E(B-V) | 0.053 | |||
* 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.