All names: GALEX J170211.8+483024, UCAC4 693-058112, WISE J170211.78+483023.1, PG1700+486, Gaia DR3 1408382624616093312, WISEA J170211.77+483023.1, 2MASS J17021178+4830231, LAMOST J170211.82+483024.6, SDSS J170211.76+483023.1, Gaia DR2 1408382624616093312, PG 1700+486, TIC 274623605
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 02 11.80 | 17 02 11.77 (0.02) | ||
| Declination | 48 30 23.24 | 48 30 23.11 (0.02) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 26010.0 (1110) | ||
| log(g) | [cgs] | 5.18 (0.09) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.76 (0.03) | 0.80 (0.02) | |
| Distance | [pc] | 1320.13 (52) | 1246.11 (38) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -11.532 (0.06) | -11.4 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.597 (0.06) | -3.426 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.91 (0.05) | |||
| V magnitude | 14.14 (0.05) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.83 (0.03) | 14.83 (0.03) | ||
| H magnitude | 14.98 (0.07) | 14.98 (0.07) | ||
| K magnitude | 14.92 (0.1) | 14.92 (0.1) | ||
| u magnitude | 13.77 (0.004) | |||
| g magnitude | 13.88 (0.07) | |||
| r magnitude | 14.38 (0.003) | 14.42 (0.07) | ||
| i magnitude | 14.71 (0.004) | 14.74 (0.04) | ||
| z magnitude | 15.02 (0.005) | |||
| G magnitude | 14.15 (0.0004) | 14.14 (0.003) | ||
| BP magnitude | 13.95 (0.006) | |||
| RP magnitude | 14.40 (0.002) | |||
| Pan g magnitude | 13.98 (0.003) | |||
| Pan r magnitude | 14.40 (0.005) | |||
| Pan i magnitude | 14.74 (0.002) | |||
| Pan z magnitude | 15.03 (0.003) | |||
| Pan y magnitude | 15.17 (0.01) | |||
| E(B-V) | 0.025 | |||
* 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.