All names: TIC 345812000, 2MASS J17142806+2247260, PG1712+228, SDSS J171428.06+224726.0, Gaia DR2 4568426459286210176, GALEX J171428.0+224723, PG 1712+228, Gaia DR3 4568426459286210176
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 14 28.06 | 17 14 28.06 (0.02) | ||
| Declination | 22 47 26.52 | 22 47 26.08 (0.02) | ||
| 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] | 0.66 (0.04) | 0.73 (0.03) | |
| Distance | [pc] | 1507.16 (96) | 1364.07 (59) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.56 (0.05) | -0.596 (0.02) | |
| Proper motion (declination) | [mas/yr] | -0.957 (0.06) | -0.893 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.67 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.39 (0.05) | 15.39 (0.05) | ||
| H magnitude | 15.47 (0.09) | 15.47 (0.09) | ||
| K magnitude | 15.12 (0.1) | 15.12 (0.1) | ||
| u magnitude | 14.36 (0.003) | 14.37 (0.02) | ||
| g magnitude | 14.51 (0.003) | 14.52 (0.01) | ||
| r magnitude | 14.99 (0.003) | 14.99 (0.01) | ||
| i magnitude | 15.30 (0.003) | 15.30 (0.02) | ||
| z magnitude | 15.62 (0.006) | 15.63 (0.02) | ||
| G magnitude | 14.79 (0.0006) | 14.77 (0.003) | ||
| BP magnitude | 14.59 (0.005) | |||
| RP magnitude | 15.01 (0.002) | |||
| Pan g magnitude | 14.59 (0.001) | |||
| Pan r magnitude | 15.01 (0.002) | |||
| Pan i magnitude | 15.35 (0.003) | |||
| Pan z magnitude | 15.62 (0.003) | |||
| Pan y magnitude | 15.78 (0.006) | |||
| E(B-V) | 0.038 | |||
* 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.