All names: 2MASS J08131980+5257064, Gaia DR3 1031713889677183360, WISE J081319.81+525706.2, GALEX J081319.4+525706, Gaia DR2 1031713889677183360, GALEXJ08133+5257, UCAC4 715-047226, WISEA J081319.82+525706.1, TIC 252997535, SBSS 0809+531, SDSS J081319.79+525706.6
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 13 19.42 | 08 13 19.81 (0.03) | ||
| Declination | 52 57 06.71 | 52 57 06.44 (0.03) | ||
| 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] | 1.10 (0.06) | 1.11 (0.04) | |
| Distance | [pc] | 907.19 (52) | 902.04 (35) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -5.226 (0.09) | -5.078 (0.04) | |
| Proper motion (declination) | [mas/yr] | -18.282 (0.07) | -18.233 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.02 (0.04) | |||
| V magnitude | 14.29 (0.04) | |||
| R magnitude | 14.63 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.90 (0.04) | 14.90 (0.04) | ||
| H magnitude | 14.96 (0.08) | 14.96 (0.08) | ||
| K magnitude | 15.23 (0.2) | 15.23 (0.2) | ||
| u magnitude | 13.63 (0.003) | |||
| g magnitude | 14.22 (0.006) | 14.01 (0.08) | ||
| r magnitude | 14.49 (0.008) | 14.55 (0.07) | ||
| i magnitude | 14.84 (0.005) | 14.90 (0.04) | ||
| z magnitude | 15.14 (0.006) | |||
| G magnitude | 14.22 (0.0008) | 14.20 (0.003) | ||
| BP magnitude | 13.97 (0.01) | |||
| RP magnitude | 14.50 (0.004) | |||
| Pan g magnitude | 14.04 (0.006) | |||
| Pan r magnitude | 14.47 (0.002) | |||
| Pan i magnitude | 14.85 (0.002) | |||
| Pan z magnitude | 15.13 (0.002) | |||
| Pan y magnitude | 15.33 (0.008) | |||
| E(B-V) | 0.039 | |||
* 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.