All names: USNO-B1.0 1423-00253210, PG1100+526, SDSS J110255.97+521858.0, SDSS J110255.96+521858.1, PG 1100+526, Gaia DR2 836471823228155392, Gaia EDR3 836471823228155392, GALEX J110255.9+521858, SDSS J110255.97+521858.1, Gaia DR3 836471823228155392, SBSS 1100+525, LAMOST J110255.97+521858.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 02 55.97 (0.04) | 11 02 55.97 | 11 02 55.97 | 11 02 55.97 (0.04) | 11 02 55.97 (0.04) | 11 02 55.97 | |||
| Declination | 52 18 57.99 (0.05) | 52 18 58.14 | 52 18 58.62 | 52 18 58.00 (0.06) | 52 18 58.13 (0.05) | 52 18 58.18 | |||
| Spectral type | He-sdO | sdOB | SDO | ||||||
| Effective temperature | [K] | 50656.0 (5000) | 93680.0 (7487) | ||||||
| log(g) | [cgs] | 5.98 (0.2) | 5.34 (0.2) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.11 (0.07) | 0.38 (0.1) | 0.38 (0.1) | 0.11 (0.07) | ||||
| Distance | [pc] | 8740.22 (5191) | 2629.50 (669) | 2629.25 (669) | 8741.26 (5188) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1.473870599 (0.06) | -1.412 (0.1) | -1.412312333 (0.1) | -1.474 (0.06) | -0.8 | |||
| Proper motion (declination) | [mas/yr] | -8.235567529 (0.06) | -8.078 (0.1) | -8.077594581 (0.1) | -8.236 (0.06) | -9.1 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 17.30 | ||||||||
| V magnitude | |||||||||
| R magnitude | 17.70 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 16.37 (0.006) | 16.37 (0.006) | 16.37 (0.006) | 16.40 (0.04) | |||||
| g magnitude | 16.80 (0.004) | 16.80 (0.004) | 16.80 (0.004) | 16.83 (0.02) | |||||
| r magnitude | 17.35 (0.005) | 17.35 (0.005) | 17.35 (0.005) | 17.36 (0.02) | |||||
| i magnitude | 17.69 (0.007) | 17.69 (0.007) | 17.69 (0.007) | 17.71 (0.02) | |||||
| z magnitude | 18.06 (0.02) | 18.06 (0.02) | 18.06 (0.02) | 18.05 (0.03) | |||||
| G magnitude | 17.07 (0.005) | 17.10 (0.001) | 17.10 | 17.07 (0.003) | |||||
| BP magnitude | 16.90 (0.005) | 16.82 (0.01) | 16.82 | ||||||
| RP magnitude | 17.39 (0.01) | 17.38 (0.008) | 17.38 | ||||||
| Pan g magnitude | 16.91 (0.009) | 16.91 (0.009) | |||||||
| Pan r magnitude | 17.34 (0.004) | 17.34 (0.004) | |||||||
| Pan i magnitude | 17.73 (0.003) | 17.73 (0.003) | |||||||
| Pan z magnitude | 18.03 (0.008) | 18.03 (0.008) | |||||||
| Pan y magnitude | 18.27 (0.02) | 18.27 (0.02) | |||||||
| E(B-V) | 0.020 | ||||||||
* 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.