All names: SDSS J230622.35+020905.9, PB 5245, Gaia EDR3 2658558745902475904, Gaia DR3 2658558745902475904, GALEX J230622.2+020906, WISEA J230622.33+020905.8, PHL 401, PG 2303+019, PG2303+019, USNO-B1.0 0921-00732290, TIC 310937915, HS 2303+0152, 2MASS J23062234+0209058, V* EP Psc, WISE J230622.33+020906.0, Gaia DR2 2658558745902475904
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 06 22.36 (0.05) | 23 06 22.36 | 23 06 22.36 (0.05) | ||
| Declination | 02 09 05.86 (0.04) | 02 09 06.17 | 02 09 05.95 (0.04) | ||
| Spectral type | sdBV | sdB | |||
| Effective temperature | [K] | 35300.0 | |||
| log(g) | [cgs] | 5.74 | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.52 (0.05) | 0.62 (0.09) | 0.52 (0.05) | |
| Distance | [pc] | 1911.68 (189) | 1611.08 (228) | 1911.68 (189) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.145 (0.05) | 3.924 (0.1) | 4.145 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.089 (0.05) | -6.042 (0.1) | -6.089 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.20 | ||||
| V magnitude | 16.23 | ||||
| R magnitude | 16.20 | ||||
| I magnitude | |||||
| J magnitude | 16.25 (0.1) | 16.25 (0.1) | |||
| H magnitude | 15.72 (0.2) | 15.72 (0.2) | |||
| K magnitude | 15.87 | ||||
| u magnitude | 15.66 (0.005) | ||||
| g magnitude | 15.95 (0.004) | ||||
| r magnitude | 16.39 (0.005) | ||||
| i magnitude | 16.66 (0.006) | ||||
| z magnitude | 16.87 (0.01) | ||||
| G magnitude | 16.17 (0.003) | 16.20 (0.002) | 16.17 (0.003) | ||
| BP magnitude | 16.07 (0.005) | 16.00 (0.006) | |||
| RP magnitude | 16.36 (0.006) | 16.36 (0.007) | |||
| Pan g magnitude | 16.03 (0.007) | ||||
| Pan r magnitude | 16.40 (0.005) | ||||
| Pan i magnitude | 16.68 (0.006) | ||||
| Pan z magnitude | 16.89 (0.006) | ||||
| Pan y magnitude | 17.01 (0.01) | ||||
| E(B-V) | 0.054 | ||||
* 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.