All names: Gaia DR3 4476146922268993280, Gaia DR2 4476146922268993280, LAMOST J175921.93+081247.7, 2MASS J17592192+0812478, LAMOSTJ175921.93+081247.7, WISE J175921.95+081247.7, UCAC4 492-075520
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 59 21.93 | 17 59 21.94 (0.03) | ||
| Declination | 08 12 47.71 | 08 12 47.82 (0.03) | ||
| Spectral type | sdB | sdB/sdO | ||
| Effective temperature | [K] | 31570.0 (687) | ||
| log(g) | [cgs] | 5.21 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.82 (0.04) | 0.84 (0.03) | |
| Distance | [pc] | 1214.03 (61) | 1186.80 (41) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.352 (0.08) | -2.311 (0.03) | |
| Proper motion (declination) | [mas/yr] | -11.208 (0.08) | -11.247 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.80 (0.02) | |||
| V magnitude | 14.82 (0.04) | |||
| R magnitude | 15.16 (0.08) | |||
| I magnitude | ||||
| J magnitude | 15.03 (0.04) | 15.03 (0.04) | ||
| H magnitude | 15.04 (0.08) | 15.04 (0.08) | ||
| K magnitude | 15.59 (0.2) | 15.59 (0.2) | ||
| u magnitude | ||||
| g magnitude | 14.74 (0.02) | |||
| r magnitude | 14.92 (0.03) | |||
| i magnitude | 15.20 (0.01) | |||
| z magnitude | ||||
| G magnitude | 14.85 (0.0006) | 14.83 (0.003) | ||
| BP magnitude | 14.73 (0.009) | |||
| RP magnitude | 14.92 (0.003) | |||
| Pan g magnitude | 14.76 (0.007) | |||
| Pan r magnitude | 15.01 (0.001) | |||
| Pan i magnitude | 15.27 (0.001) | |||
| Pan z magnitude | 15.47 (0.006) | |||
| Pan y magnitude | 15.60 (0.003) | |||
| E(B-V) | 0.177 | |||
* 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.