All names: GSC 00580-00415, PG2317+046, uvby98 601105333, [TFW97] J231955.34+045234.79, Gaia DR3 2660835289023309696, TIC 262748917, PG 2317+046, 2MASS J23195534+0452345, PB 5333, UCAC2 33502128, Gaia DR2 2660835289023309696, [RRW93] Pn24s-16, LAMOST J231955.35+045234.6, GALEX J231955.1+045235
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 23 19 55.27 | 23 19 55.35 (0.05) | ||
| Declination | 04 52 35.78 | 04 52 34.66 (0.04) | ||
| Spectral type | sdOB+WD | sdO8VIIHe1 | ||
| Effective temperature | [K] | 40600.0 (500) | ||
| log(g) | [cgs] | 5.96 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 2.18 (0.05) | 2.25 (0.05) | |
| Distance | [pc] | 457.75 (11) | 444.58 (1e+01) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 25.785 (0.1) | 25.687 (0.07) | |
| Proper motion (declination) | [mas/yr] | -21.136 (0.07) | -21.279 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.63 (0.009) | |||
| V magnitude | 12.88 (0.009) | |||
| R magnitude | 12.95 (0.009) | |||
| I magnitude | 12.99 (0.009) | |||
| J magnitude | 12.90 (0.02) | 12.90 (0.02) | ||
| H magnitude | 12.65 (0.03) | 12.65 (0.03) | ||
| K magnitude | 12.62 (0.03) | 12.62 (0.03) | ||
| u magnitude | 14.26 (0.01) | |||
| g magnitude | ||||
| r magnitude | 13.16 (0.002) | |||
| i magnitude | 16.09 (0.01) | |||
| z magnitude | 13.81 (0.007) | |||
| G magnitude | 12.81 (0.0007) | 12.79 (0.003) | ||
| BP magnitude | 12.63 (0.009) | |||
| RP magnitude | 12.96 (0.002) | |||
| Pan g magnitude | 12.90 (0.1) | |||
| Pan r magnitude | 13.05 (0.001) | |||
| Pan i magnitude | 13.31 (0.002) | |||
| Pan z magnitude | 13.48 (0.004) | |||
| Pan y magnitude | 13.59 (0.007) | |||
| E(B-V) | 0.050 | |||
* 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.