All names: LBQS 2236-0201, PHL 361, GALEX J223910.3-014536, PHL361, USNO-B1.0 0882-00694889, SDSS J223910.31-014536.5, Gaia DR2 2652714944679812480, Gaia DR3 2652714944679812480
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 39 10.33 | 22 39 10.32 (0.1) | ||
| Declination | -01 45 35.97 | -01 45 36.39 (0.1) | ||
| Spectral type | sdB | sdBp | ||
| 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] | 0.69 (0.2) | 0.31 (0.1) | |
| Distance | [pc] | 1453.91 (481) | 3233.11 (1284) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.835 (0.3) | -4.06 (0.1) | |
| Proper motion (declination) | [mas/yr] | -12.739 (0.3) | -12.691 (0.1) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 17.60 | |||
| V magnitude | 18.30 | |||
| R magnitude | 17.20 | |||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 17.63 (0.01) | 17.63 (0.01) | ||
| g magnitude | 17.64 (0.006) | 17.64 (0.006) | ||
| r magnitude | 17.87 (0.007) | 17.87 (0.007) | ||
| i magnitude | 17.98 (0.009) | 17.98 (0.009) | ||
| z magnitude | 18.08 (0.02) | 18.08 (0.02) | ||
| G magnitude | 17.73 (0.002) | 17.70 (0.003) | ||
| BP magnitude | 17.67 (0.008) | |||
| RP magnitude | 17.60 (0.05) | |||
| Pan g magnitude | 17.69 (0.007) | |||
| Pan r magnitude | 17.86 (0.005) | |||
| Pan i magnitude | 17.99 (0.005) | |||
| Pan z magnitude | 18.09 (0.006) | |||
| Pan y magnitude | 18.15 (0.03) | |||
| E(B-V) | 0.055 | |||
* 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.