All names: US1796, Gaia DR3 913941247857411840, GALEX J085129.9+435506, SDSS J085129.90+435506.4, SDSS J085129.89+435506.6, LAMOST J085129.90+435506.4, US 1796, Gaia DR2 913941247857411840, Gaia EDR3 913941247857411840
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 51 29.90 (0.06) | 08 51 29.89 | 08 51 29.90 (0.06) | ||
| Declination | 43 55 06.41 (0.05) | 43 55 07.47 | 43 55 06.66 (0.05) | ||
| Spectral type | sdB | sdOBHe | |||
| 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] | 0.44 (0.09) | 0.40 (0.1) | 0.44 (0.09) | |
| Distance | [pc] | 2260.91 (457) | 2478.31 (626) | 2260.91 (457) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 0.377 (0.08) | 0.206 (0.1) | 0.377 (0.08) | |
| Proper motion (declination) | [mas/yr] | -15.522 (0.07) | -15.669 (0.1) | -15.522 (0.07) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.70 | ||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 16.35 (0.006) | 16.35 (0.006) | |||
| g magnitude | 16.67 (0.004) | 16.67 (0.004) | |||
| r magnitude | 17.14 (0.005) | 17.14 (0.005) | |||
| i magnitude | 17.54 (0.007) | 17.55 (0.007) | |||
| z magnitude | 17.85 (0.02) | 17.85 (0.02) | |||
| G magnitude | 16.95 (0.003) | 16.98 (0.001) | 16.95 (0.003) | ||
| BP magnitude | 16.81 (0.007) | 16.73 (0.008) | |||
| RP magnitude | 17.26 (0.009) | 17.25 (0.009) | |||
| Pan g magnitude | 16.77 (0.005) | ||||
| Pan r magnitude | 17.22 (0.005) | ||||
| Pan i magnitude | 17.59 (0.004) | ||||
| Pan z magnitude | 17.86 (0.005) | ||||
| Pan y magnitude | 18.04 (0.02) | ||||
| E(B-V) | 0.026 | ||||
* 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.