All names: Gaia DR3 307987333088112640, PG 0105+276, GALEX J010816.5+275252, Gaia DR2 307987333088112640, UCAC2 41480357, SDSS J010816.59+275251.5, UCAC4 590-002862, PG0105+276
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 01 08 16.65 | 01 08 16.59 (0.04) | ||
| Declination | 27 52 51.22 | 27 52 51.56 (0.03) | ||
| Spectral type | sdB+K | sdOHe | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.36 (0.07) | 0.34 (0.05) | |
| Distance | [pc] | 2812.15 (565) | 2977.96 (418) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.105 (0.1) | 1.336 (0.05) | |
| Proper motion (declination) | [mas/yr] | 0.388 (0.1) | 0.656 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.41 (0.01) | |||
| V magnitude | 14.44 (0.01) | |||
| R magnitude | 14.98 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.32 (0.04) | |||
| H magnitude | 13.84 (0.04) | |||
| K magnitude | 13.75 (0.05) | |||
| u magnitude | 14.13 (0.004) | |||
| g magnitude | 14.49 (0.004) | 14.39 (0.01) | ||
| r magnitude | 14.97 (0.004) | 14.54 (0.01) | ||
| i magnitude | 15.30 (0.004) | 14.63 (0.01) | ||
| z magnitude | 15.61 (0.006) | |||
| G magnitude | 14.73 (0.001) | 14.72 (0.003) | ||
| BP magnitude | 14.52 (0.01) | |||
| RP magnitude | 14.98 (0.003) | |||
| Pan g magnitude | 14.58 (0.007) | |||
| Pan r magnitude | 14.97 (0.002) | |||
| Pan i magnitude | 15.31 (0.002) | |||
| Pan z magnitude | 15.56 (0.002) | |||
| Pan y magnitude | 15.74 (0.004) | |||
| E(B-V) | 0.047 | |||
* 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.