All names: Gaia DR3 906316130422403712, SDSS J080928.86+363431.54, SDSS J080928.86+363431.5, Gaia EDR3 906316130422403712, Gaia DR2 906316130422403712
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 08 09 28.87 (0.1) | 08 09 28.86 | 08 09 28.87 (0.1) | |||
| Declination | 36 34 31.53 (0.1) | 36 34 31.54 | 36 34 31.54 (0.1) | |||
| Spectral type | sdA | sdA | ||||
| Effective temperature | [K] | 7687.0 (22) | ||||
| log(g) | [cgs] | 5.71 (0.08) | ||||
| Mass | [M☉] | 0.15082 (0.0002) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | -0.03 (0.2) | ||||
| Distance | [pc] | |||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 0.838218246 (0.1) | 0.838 (0.1) | |||
| Proper motion (declination) | [mas/yr] | -0.575597412 (0.1) | -0.576 (0.1) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 19.62 (0.03) | 19.64 (0.03) | 19.62 (0.03) | |||
| g magnitude | 18.40 (0.007) | 18.40 (0.03) | 18.40 (0.007) | |||
| r magnitude | 18.25 (0.007) | 18.26 (0.02) | 18.25 (0.007) | |||
| i magnitude | 18.20 (0.009) | 18.22 (0.04) | 18.20 (0.009) | |||
| z magnitude | 18.22 (0.02) | 18.22 (0.03) | 18.22 (0.02) | |||
| G magnitude | 18.23 (0.02) | 18.23 (0.003) | ||||
| BP magnitude | 18.47 (0.02) | |||||
| RP magnitude | 17.91 (0.02) | |||||
| Pan g magnitude | 18.39 (0.005) | |||||
| Pan r magnitude | 18.25 (0.004) | |||||
| Pan i magnitude | 18.22 (0.005) | |||||
| Pan z magnitude | 18.26 (0.005) | |||||
| Pan y magnitude | 18.23 (0.02) | |||||
| 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.