All names: GALEX J075807.5-043203, LAMOST J075807.54-043205.3, GALEXJ07581-0432, TIC 25948892, Gaia DR2 3068507812327598208, TYC 4841-1870-1, 2MASS J07580753-0432052, GALEX J075807.5-043204, Gaia EDR3 3068507812327598208, LAMOST J075807.53-043205.2, Gaia DR3 3068507812327598208
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 58 07.54 (0.03) | 07 58 07.55 | 07 58 07.54 (0.03) | ||
| Declination | -04 32 05.39 (0.02) | -04 32 04.00 | -04 32 05.28 (0.02) | ||
| Spectral type | He-sdOB | sdO9.5VIIHe33 | |||
| Effective temperature | [K] | 41360.0 (530) | |||
| log(g) | [cgs] | 5.85 (0.3) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.73 (0.04) | 1.66 (0.07) | 1.73 (0.04) | |
| Distance | [pc] | 579.58 (14) | 603.39 (24) | 579.58 (14) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 3.206 (0.04) | 3.118 (0.1) | 3.206 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.815 (0.03) | -6.658 (0.08) | -6.815 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.36 (0.2) | ||||
| V magnitude | 12.18 (0.2) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.78 (0.02) | 13.78 (0.02) | |||
| H magnitude | 13.93 (0.03) | 13.93 (0.03) | |||
| K magnitude | 13.99 (0.06) | 13.99 (0.06) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 13.04 (0.003) | 13.06 (0.0007) | 13.04 (0.003) | ||
| BP magnitude | 12.88 (0.003) | 12.81 (0.008) | |||
| RP magnitude | 13.36 (0.004) | 13.35 (0.002) | |||
| Pan g magnitude | 13.17 (0.02) | ||||
| Pan r magnitude | |||||
| Pan i magnitude | 14.34 (0.03) | ||||
| Pan z magnitude | 13.98 (0.007) | ||||
| Pan y magnitude | 14.17 (0.004) | ||||
| E(B-V) | 0.037 | ||||
* 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.