All names: GALEX J080327.9+342142, 2MASS J08032795+3421408, Gaia DR2 905650346067635968, LAMOST J080327.92+342140.6, Ton 864, Gaia DR3 905650346067635968, SDSS J080327.93+342140.7, SDSSJ080327.93+342140.7, TIC 139150535, SDSS J080327.93+342140.6
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 03 27.94 | 08 03 27.94 (0.04) | ||
| Declination | 34 21 40.69 | 34 21 40.66 (0.03) | ||
| Spectral type | sdOB | sdOHe3 | ||
| Effective temperature | [K] | 39536.0 (297) | ||
| log(g) | [cgs] | 5.75 (0.03) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.60 (0.07) | 0.56 (0.05) | |
| Distance | [pc] | 1680.11 (188) | 1771.17 (141) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.489 (0.1) | -4.391 (0.04) | |
| Proper motion (declination) | [mas/yr] | -7.799 (0.07) | -7.942 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.90 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.64 (0.09) | 15.64 (0.09) | ||
| H magnitude | 16.29 (0.3) | 16.29 (0.3) | ||
| K magnitude | 15.49 | |||
| u magnitude | 14.49 (0.004) | 14.49 (0.004) | ||
| g magnitude | 14.79 (0.004) | 14.79 (0.004) | ||
| r magnitude | 15.27 (0.004) | 15.27 (0.004) | ||
| i magnitude | 15.64 (0.005) | 15.64 (0.005) | ||
| z magnitude | 15.96 (0.007) | 15.96 (0.007) | ||
| G magnitude | 15.06 (0.0008) | 15.05 (0.003) | ||
| BP magnitude | 14.83 (0.01) | |||
| RP magnitude | 15.32 (0.004) | |||
| Pan g magnitude | 14.89 (0.0007) | |||
| Pan r magnitude | 15.31 (0.003) | |||
| Pan i magnitude | 15.66 (0.002) | |||
| Pan z magnitude | 15.94 (0.004) | |||
| Pan y magnitude | 16.11 (0.005) | |||
| E(B-V) | 0.038 | |||
* 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.