All names: PSO J110.4442+23.5054, Gaia DR3 869444768195598848, GALEX J072146.6+233020, Gaia DR2 869444768195598848, LAMOSTJ072146.62+233019.6, LAMOST J072146.62+233019.6
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 21 46.62 | 07 21 46.62 (0.07) | ||
| Declination | 23 30 19.60 | 23 30 19.60 (0.05) | ||
| Spectral type | sdOB | sdB/sdO | ||
| Effective temperature | [K] | 38000.0 (13) | ||
| log(g) | [cgs] | 6.30 (0.01) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.42 (0.1) | 0.31 (0.07) | |
| Distance | [pc] | 2394.06 (624) | 3208.21 (688) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.977 (0.2) | 3.817 (0.08) | |
| Proper motion (declination) | [mas/yr] | -3.307 (0.1) | -3.363 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | ||||
| g magnitude | 16.73 (0.003) | |||
| r magnitude | 17.08 (0.004) | |||
| i magnitude | 17.42 (0.005) | |||
| z magnitude | 17.67 (0.007) | |||
| G magnitude | 16.89 (0.002) | 16.86 (0.003) | ||
| BP magnitude | 16.69 (0.02) | |||
| RP magnitude | 17.06 (0.01) | |||
| Pan g magnitude | 16.73 (0.003) | |||
| Pan r magnitude | 17.08 (0.004) | |||
| Pan i magnitude | 17.42 (0.005) | |||
| Pan z magnitude | 17.67 (0.007) | |||
| Pan y magnitude | 17.83 (0.02) | |||
| E(B-V) | 0.053 | |||
* 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.