All names: 2MASS J23202375-1809054, PHL 466, EC 23177-1825, WISE J232023.75-180905.6, GD 1295, Gaia DR2 2405486323495785856, DENIS J232023.7-180905, WISEA J232023.75-180905.5, UCAC4 360-214000, Gaia EDR3 2405486323495785856, Gaia DR3 2405486323495785856, UCAC2 24993755, WD 2317-184, TIC 9057694
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 23 20 23.76 (0.04) | 23 20 23.76 (0.04) | 23 20 23.76 (0.04) | 23 20 19.70 | |||
| Declination | -18 09 05.65 (0.03) | -18 09 05.64 (0.03) | -18 09 05.51 (0.03) | -18 09 33.48 | |||
| Spectral type | sdB/B | DA4 | |||||
| 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] | 0.43 (0.04) | 0.36 (0.05) | 0.43 (0.04) | |||
| Distance | [pc] | 2336.29 (202) | 2786.29 (372) | 2336.45 (202) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -1.929427562 (0.04) | -1.815 (0.09) | -1.929 (0.04) | |||
| Proper motion (declination) | [mas/yr] | -8.752291176 (0.04) | -8.715 (0.07) | -8.752 (0.04) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 14.04 (0.03) | ||||||
| V magnitude | 14.16 (0.02) | ||||||
| R magnitude | 14.33 (0.2) | ||||||
| I magnitude | 14.27 (0.04) | ||||||
| J magnitude | 14.51 (0.03) | ||||||
| H magnitude | 14.62 (0.06) | ||||||
| K magnitude | 14.55 (0.07) | ||||||
| u magnitude | |||||||
| g magnitude | |||||||
| r magnitude | |||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 14.16 (0.002) | 14.18 | 14.16 (0.003) | ||||
| BP magnitude | 14.08 (0.002) | 14.07 | |||||
| RP magnitude | 14.30 (0.001) | 14.31 | |||||
| Pan g magnitude | 14.04 (0.01) | ||||||
| Pan r magnitude | 14.36 (0.003) | ||||||
| Pan i magnitude | 14.64 (0.002) | ||||||
| Pan z magnitude | 14.86 (0.006) | ||||||
| Pan y magnitude | 14.97 (0.003) | ||||||
| E(B-V) | 0.016 | ||||||
* 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.