All names: Gaia DR3 1081928684501959552, GALEX J080039.5+580233, Gaia DR2 1081928684501959552, 2MASS J08003953+5802333, WISEA J080039.52+580233.7, LAMOST J080039.54+580233.9, WISE J080039.54+580233.8, SBSS0756+581, SBSS 0756+581, UCAC4 741-047197, TIC 80857683
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 08 00 39.46 | 08 00 39.54 (0.1) | |
| Declination | 58 02 34.40 | 58 02 34.02 (0.1) | |
| Spectral type | sdB | sdB | |
| 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] | -0.25 (0.2) | |
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 5.181 (0.3) | 6.525 (0.2) |
| Proper motion (declination) | [mas/yr] | -4.538 (0.3) | -5.935 (0.2) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 16.50 | ||
| V magnitude | |||
| R magnitude | 16.27 | ||
| I magnitude | |||
| J magnitude | 16.88 (0.1) | 16.88 (0.1) | |
| H magnitude | 16.27 (0.2) | 16.27 (0.2) | |
| K magnitude | 15.71 (0.2) | 15.71 (0.2) | |
| u magnitude | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 16.74 (0.002) | 16.73 (0.004) | |
| BP magnitude | 16.54 (0.008) | ||
| RP magnitude | 16.79 (0.005) | ||
| Pan g magnitude | 16.59 (0.004) | ||
| Pan r magnitude | 16.90 (0.004) | ||
| Pan i magnitude | 17.12 (0.004) | ||
| Pan z magnitude | 17.28 (0.005) | ||
| Pan y magnitude | 17.38 (0.009) | ||
| 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.