All names: Gaia DR2 642721068204889216, Gaia DR3 642721068204889216, SDSSJ095854.93+245311.8, GALEX J095854.9+245312, SDSS J095854.93+245311.7, SDSS J095854.93+245311.6
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 09 58 54.93 | 09 58 54.94 (0.2) | |
| Declination | 24 53 11.80 | 24 53 11.93 (0.1) | |
| Spectral type | sdO | sdO | |
| Effective temperature | [K] | 47358.0 (2961) | |
| log(g) | [cgs] | 5.69 (0.2) | |
| Mass | [M☉] | ||
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | -0.02 (0.3) | 0.02 (0.2) |
| Distance | [pc] | 41666.67 (388194) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -2.435 (0.5) | -2.28 (0.2) |
| Proper motion (declination) | [mas/yr] | -7.283 (0.4) | -7.59 (0.2) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 18.30 (0.01) | 18.30 (0.01) | |
| g magnitude | 18.71 (0.008) | 18.71 (0.008) | |
| r magnitude | 19.21 (0.01) | 19.21 (0.01) | |
| i magnitude | 19.58 (0.02) | 19.58 (0.02) | |
| z magnitude | 19.71 (0.1) | 19.72 (0.09) | |
| G magnitude | 18.99 (0.004) | 18.95 (0.004) | |
| BP magnitude | 18.75 (0.04) | ||
| RP magnitude | 19.23 (0.06) | ||
| Pan g magnitude | 18.78 (0.007) | ||
| Pan r magnitude | 19.18 (0.01) | ||
| Pan i magnitude | 19.60 (0.01) | ||
| Pan z magnitude | 19.80 (0.03) | ||
| Pan y magnitude | 19.99 (0.06) | ||
| E(B-V) | |||
* 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.