All names: LAMOST J075500.91+320347.5, SDSS J075500.91+320347.5, GALEX J075500.9+320347, Gaia DR2 880922565781344256, SDSSJ075500.92+320347.5, Gaia DR3 880922565781344256, SDSS J075500.92+320347.5
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 55 00.92 | 07 55 00.92 (0.07) | ||
| Declination | 32 03 47.50 | 32 03 47.50 (0.06) | ||
| Spectral type | sdB | sdB/sdO | ||
| Effective temperature | [K] | 29345.0 (359) | ||
| log(g) | [cgs] | 5.77 (0.07) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.29 (0.1) | 0.19 (0.09) | |
| Distance | [pc] | 3466.20 (1366) | 5232.86 (2467) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.763 (0.2) | -0.747 (0.08) | |
| Proper motion (declination) | [mas/yr] | -2.866 (0.1) | -2.936 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 16.80 (0.007) | 16.80 (0.007) | ||
| g magnitude | 16.89 (0.005) | 16.89 (0.005) | ||
| r magnitude | 17.33 (0.005) | 17.33 (0.005) | ||
| i magnitude | 17.67 (0.007) | 17.67 (0.007) | ||
| z magnitude | 17.93 (0.02) | 17.93 (0.02) | ||
| G magnitude | 17.17 (0.002) | 17.13 (0.003) | ||
| BP magnitude | 16.98 (0.01) | |||
| RP magnitude | 17.36 (0.01) | |||
| Pan g magnitude | 16.97 (0.004) | |||
| Pan r magnitude | 17.37 (0.004) | |||
| Pan i magnitude | 17.68 (0.005) | |||
| Pan z magnitude | 17.94 (0.009) | |||
| Pan y magnitude | 18.11 (0.02) | |||
| E(B-V) | 0.039 | |||
* 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.