All names: TIC 301791485, Gaia DR3 2797051138888605568, uvby98 610160687, PG0005+179, SDSS J000817.78+180758.5, Gaia EDR3 2797051138888605568, WISEA J000817.79+180758.4, PHL 687, PG 0005+179, UCAC4 541-000277, UCAC2 38187933, WISE J000817.79+180758.5, GALEX J000817.7+180758, 2MASS J00081777+1807585, Gaia DR2 2797051138888605568, Balloon 93600002
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 08 17.79 (0.04) | 00 08 17.75 | 00 08 17.78 (0.04) | ||
| Declination | 18 07 58.42 (0.04) | 18 07 58.68 | 18 07 58.47 (0.04) | ||
| Spectral type | sdB | sdB | |||
| 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] | 1.28 (0.05) | 1.36 (0.09) | 1.28 (0.05) | |
| Distance | [pc] | 781.98 (30) | 737.19 (47) | 781.98 (30) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 12.035 (0.05) | 11.813 (0.1) | 12.035 (0.05) | |
| Proper motion (declination) | [mas/yr] | -2.721 (0.05) | -2.958 (0.1) | -2.721 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.18 (0.04) | ||||
| V magnitude | 14.43 (0.01) | ||||
| R magnitude | 14.78 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.03 (0.05) | 15.03 (0.05) | |||
| H magnitude | 15.10 (0.1) | 15.10 (0.1) | |||
| K magnitude | 15.32 (0.2) | 15.32 (0.2) | |||
| u magnitude | 15.68 (0.01) | ||||
| g magnitude | 16.27 (0.01) | ||||
| r magnitude | |||||
| i magnitude | 16.20 (0.01) | ||||
| z magnitude | 15.71 (0.01) | ||||
| G magnitude | 14.35 (0.003) | 14.37 (0.0007) | 14.35 (0.003) | ||
| BP magnitude | 14.20 (0.003) | 14.15 (0.008) | |||
| RP magnitude | 14.64 (0.004) | 14.64 (0.002) | |||
| Pan g magnitude | 14.20 (0.003) | ||||
| Pan r magnitude | 14.61 (0.003) | ||||
| Pan i magnitude | 14.97 (0.004) | ||||
| Pan z magnitude | 15.25 (0.007) | ||||
| Pan y magnitude | 15.43 (0.003) | ||||
| E(B-V) | 0.049 | ||||
* 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.