All names: GALEXJ080929.46+054843.65, Gaia DR2 3095093419370170368, GALEX J080929.5+054843, WISEA J080929.43+054843.6, SDSS J080929.42+054843.6, UCAC4 480-042422, GALEX J080929.4+054843, Gaia DR3 3095093419370170368, TIC 452979527, WISE J080929.42+054843.6, 2MASS J08092943+0548436, UCAC2 33744266
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 09 29.46 | 08 09 29.43 (0.03) | ||
| Declination | 05 48 43.65 | 05 48 43.75 (0.02) | ||
| Spectral type | sdB | B | ||
| 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] | 0.69 (0.06) | 0.93 (0.04) | |
| Distance | [pc] | 1443.42 (120) | 1070.55 (50) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.549 (0.1) | -0.374 (0.04) | |
| Proper motion (declination) | [mas/yr] | -5.156 (0.06) | -5.194 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.42 (0.06) | |||
| V magnitude | 13.55 (0.02) | |||
| R magnitude | 13.80 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.03 (0.03) | 14.03 (0.03) | ||
| H magnitude | 14.13 (0.05) | 14.13 (0.05) | ||
| K magnitude | 14.09 (0.07) | 14.09 (0.07) | ||
| u magnitude | 14.33 (0.007) | |||
| g magnitude | 13.52 (0.002) | 13.38 (0.05) | ||
| r magnitude | 13.83 (0.002) | 13.76 (0.02) | ||
| i magnitude | 14.19 (0.003) | 14.10 (0.03) | ||
| z magnitude | 14.54 (0.008) | |||
| G magnitude | 13.55 (0.0004) | 13.53 (0.003) | ||
| BP magnitude | 13.38 (0.004) | |||
| RP magnitude | 13.74 (0.001) | |||
| Pan g magnitude | 13.45 (0.006) | |||
| Pan r magnitude | 13.75 (0.007) | |||
| Pan i magnitude | 14.11 (0.005) | |||
| Pan z magnitude | 14.34 (0.002) | |||
| Pan y magnitude | 14.48 (0.004) | |||
| E(B-V) | 0.024 | |||
* 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.