All names: GALEX J105412.7+291712, HS1051+2933, SDSS J105412.67+291711.8, Gaia DR3 731743061507469568, HS 1051+2933, Gaia DR2 731743061507469568, Gaia EDR3 731743061507469568, SDSS J105412.68+291711.8, LAMOST J105412.73+291712.6, LAMOST J105412.67+291711.8, Ton 554, CSO 63, SDSS J105412.68+291711.6
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 10 54 12.69 (0.08) | 10 54 12.64 | 10 54 12.67 (0.08) | ||
| Declination | 29 17 11.66 (0.1) | 29 17 12.86 | 29 17 12.00 (0.1) | ||
| Spectral type | sdOB | sdOB | |||
| Effective temperature | [K] | 36300.0 (900) | |||
| log(g) | [cgs] | 5.95 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.45 (0.1) | 0.49 (0.2) | 0.45 (0.1) | |
| Distance | [pc] | 2221.24 (481) | 2051.70 (700) | 2221.24 (481) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 10.938 (0.09) | 10.919 (0.2) | 10.938 (0.09) | |
| Proper motion (declination) | [mas/yr] | -21.637 (0.1) | -21.852 (0.2) | -21.637 (0.1) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.70 | ||||
| V magnitude | |||||
| R magnitude | 17.20 | ||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 16.47 (0.006) | 16.47 (0.006) | |||
| g magnitude | 16.77 (0.004) | 16.77 (0.004) | |||
| r magnitude | 17.30 (0.005) | 17.30 (0.005) | |||
| i magnitude | 17.65 (0.007) | 17.65 (0.007) | |||
| z magnitude | 17.98 (0.02) | 17.98 (0.02) | |||
| G magnitude | 17.05 (0.003) | 17.08 (0.003) | 17.05 (0.003) | ||
| BP magnitude | 16.90 (0.006) | 16.81 (0.009) | |||
| RP magnitude | 17.37 (0.01) | 17.36 (0.02) | |||
| Pan g magnitude | 16.85 (0.007) | ||||
| Pan r magnitude | 17.32 (0.007) | ||||
| Pan i magnitude | 17.71 (0.004) | ||||
| Pan z magnitude | 18.00 (0.008) | ||||
| Pan y magnitude | 18.20 (0.04) | ||||
| E(B-V) | 0.019 | ||||
* 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.