All names: Gaia DR2 921064055980216320, KUV 343-11, GALEX J080231.5+392227, TIC 332210657, LAMOST J080231.53+392228.7, SDSS J080231.53+392228.8, 2MASS J08023153+3922286, KUV 07592+3931, Gaia DR3 921064055980216320, KUV07592+3931, Pul -3 391015
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 02 31.55 | 08 02 31.54 (0.04) | ||
| Declination | 39 22 29.25 | 39 22 28.84 (0.03) | ||
| Spectral type | sdOB | sdO | ||
| Effective temperature | [K] | 36168.0 (169) | ||
| log(g) | [cgs] | 5.66 (0.03) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.52 (0.07) | 0.49 (0.05) | |
| Distance | [pc] | 1909.13 (258) | 2053.39 (202) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.238 (0.1) | -4.058 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.228 (0.08) | -6.328 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.97 | |||
| V magnitude | 15.26 | |||
| R magnitude | 15.10 | |||
| I magnitude | ||||
| J magnitude | 15.87 (0.08) | 15.87 (0.08) | ||
| H magnitude | 16.05 (0.2) | 16.05 (0.2) | ||
| K magnitude | 15.75 | |||
| u magnitude | 14.57 (0.003) | 14.57 (0.02) | ||
| g magnitude | 14.90 (0.003) | 14.89 (0.01) | ||
| r magnitude | 15.39 (0.003) | 15.40 (0.01) | ||
| i magnitude | 15.78 (0.004) | 15.80 (0.01) | ||
| z magnitude | 16.12 (0.007) | 16.12 (0.02) | ||
| G magnitude | 15.19 (0.0009) | 15.17 (0.003) | ||
| BP magnitude | 14.94 (0.01) | |||
| RP magnitude | 15.46 (0.004) | |||
| Pan g magnitude | 14.99 (0.001) | |||
| Pan r magnitude | 15.44 (0.002) | |||
| Pan i magnitude | 15.81 (0.001) | |||
| Pan z magnitude | 16.10 (0.004) | |||
| Pan y magnitude | 16.28 (0.03) | |||
| 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.