All names: Gaia DR3 2659982617755889152, Gaia DR2 2659982617755889152, UCAC3 189-289793, GALEX J233358.1+040354, PG2331+038, PG 2331+038, SDSS J233358.19+040355.2, BPS CS 31088-0091, UCAC4 471-132958, PB 5446, LAMOST J233358.18+040355.3, uvby98 601105446, TIC 422603709, 2MASS J23335819+0403554, Gaia EDR3 2659982617755889152, SBC9 3350
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 23 33 58.19 (0.04) | 23 33 58.24 | 23 33 58.20 (0.04) | ||
| Declination | 04 03 55.12 (0.03) | 04 03 56.45 | 04 03 55.37 (0.03) | ||
| Spectral type | sdB+WD | sdB1.5VIIHe2 | |||
| Effective temperature | [K] | 27200.0 | |||
| log(g) | [cgs] | 5.58 | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.94 (0.04) | 0.93 (0.06) | 0.94 (0.04) | |
| Distance | [pc] | 1059.77 (40) | 1077.12 (65) | 1059.77 (40) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -11.908 (0.06) | -11.737 (0.1) | -11.908 (0.06) | |
| Proper motion (declination) | [mas/yr] | -15.754 (0.03) | -15.518 (0.07) | -15.754 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.78 (0.02) | ||||
| V magnitude | 14.63 (0.01) | ||||
| R magnitude | 15.19 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.32 (0.06) | 15.32 (0.06) | |||
| H magnitude | 15.61 (0.1) | 15.61 (0.1) | |||
| K magnitude | 15.31 (0.1) | 15.31 (0.1) | |||
| u magnitude | 14.75 (0.004) | 14.75 (0.004) | |||
| g magnitude | 14.74 (0.003) | 14.74 (0.003) | |||
| r magnitude | 15.10 (0.004) | 15.10 (0.004) | |||
| i magnitude | 15.39 (0.005) | 15.39 (0.005) | |||
| z magnitude | 15.67 (0.006) | 15.67 (0.006) | |||
| G magnitude | 14.92 (0.003) | 14.94 (0.0006) | 14.92 (0.003) | ||
| BP magnitude | 14.84 (0.003) | 14.81 (0.004) | |||
| RP magnitude | 15.09 (0.004) | 15.09 (0.002) | |||
| Pan g magnitude | 14.81 (0.003) | ||||
| Pan r magnitude | 15.12 (0.002) | ||||
| Pan i magnitude | 15.41 (0.003) | ||||
| Pan z magnitude | 15.65 (0.002) | ||||
| Pan y magnitude | 15.79 (0.004) | ||||
| E(B-V) | 0.052 | ||||
* 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.