All names: Gaia DR3 690001549964561792, SDSS J085137.81+244150.3, GALEX J085137.7+244151, PG0848+249, Ton 357, LAMOST J085137.80+244150.2, TIC 117416892, PG 0848+249, uvby98 610070357, Gaia DR2 690001549964561792, 2MASS J08513781+2441504
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 51 37.84 | 08 51 37.81 (0.05) | ||
| Declination | 24 41 50.71 | 24 41 50.32 (0.03) | ||
| Spectral type | sdO | sdB | ||
| Effective temperature | [K] | 70000.0 (5940) | ||
| log(g) | [cgs] | 5.56 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.91 (0.08) | 0.98 (0.06) | |
| Distance | [pc] | 1103.63 (102) | 1023.44 (67) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -9.7 (0.1) | -9.967 (0.06) | |
| Proper motion (declination) | [mas/yr] | -3.54 (0.08) | -3.552 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.70 | |||
| V magnitude | 14.35 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.31 (0.03) | 14.31 (0.03) | ||
| H magnitude | 14.20 (0.04) | 14.20 (0.04) | ||
| K magnitude | 14.20 (0.06) | 14.20 (0.06) | ||
| u magnitude | 13.51 (0.003) | 13.54 (0.02) | ||
| g magnitude | 13.92 (0.003) | 13.97 (0.02) | ||
| r magnitude | 14.41 (0.003) | 14.40 (0.02) | ||
| i magnitude | 14.67 (0.003) | 14.66 (0.02) | ||
| z magnitude | 14.91 (0.005) | 14.91 (0.02) | ||
| G magnitude | 14.17 (0.0007) | 14.15 (0.003) | ||
| BP magnitude | 13.97 (0.008) | |||
| RP magnitude | 14.35 (0.001) | |||
| Pan g magnitude | 14.06 (0.002) | |||
| Pan r magnitude | 14.42 (0.004) | |||
| Pan i magnitude | 14.70 (0.003) | |||
| Pan z magnitude | 14.89 (0.003) | |||
| Pan y magnitude | 15.00 (0.005) | |||
| E(B-V) | 0.027 | |||
* 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.