All names: V* V1093 Her, Gaia DR3 1360142372284959360, FBS B 380, Gaia EDR3 1360142372284959360, PG 1716+426, GALEX J171803.8+423410, 2MASS J17180386+4234127, TIC 334901449, Gaia DR2 1360142372284959360, WD 1716+426, GSC 03081-00631, PG1716+426, FBS 1716+426
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 18 03.87 (0.02) | 17 18 03.82 | 17 18 03.87 (0.03) | 17 18 03.86 (0.02) | 17 18 02.42 | |||
| Declination | 42 34 12.20 (0.02) | 42 34 13.63 | 42 34 12.22 (0.03) | 42 34 12.56 (0.02) | 42 34 06.24 | |||
| Spectral type | sdBV+WD | sdB2VIIHe3 | __1.8 | |||||
| Effective temperature | [K] | 27400.0 (1000) | ||||||
| log(g) | [cgs] | 5.47 (0.1) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.19 (0.03) | 1.14 (0.03) | 1.14 (0.03) | 1.19 (0.03) | |||
| Distance | [pc] | 841.30 (18) | 877.19 (26) | 877.19 (26) | 841.33 (18) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 6.43461814 (0.03) | 6.441 (0.07) | 6.441242585 (0.07) | 6.435 (0.03) | |||
| Proper motion (declination) | [mas/yr] | -22.41439122 (0.03) | -22.62 (0.07) | -22.61998703 (0.07) | -22.414 (0.03) | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 13.69 | |||||||
| V magnitude | 13.97 | |||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 14.52 (0.03) | 14.52 (0.03) | ||||||
| H magnitude | 14.68 (0.07) | 14.68 (0.07) | ||||||
| K magnitude | 15.03 (0.1) | 15.03 (0.1) | ||||||
| u magnitude | 13.53 (0.004) | |||||||
| g magnitude | ||||||||
| r magnitude | 14.15 (0.004) | |||||||
| i magnitude | 14.47 (0.003) | |||||||
| z magnitude | 14.77 (0.004) | |||||||
| G magnitude | 13.90 (0.001) | 13.92 (0.0006) | 13.92 | 13.90 (0.003) | ||||
| BP magnitude | 13.77 (0.001) | 13.72 (0.01) | 13.72 | |||||
| RP magnitude | 14.17 (0.001) | 14.17 (0.002) | 14.17 | |||||
| Pan g magnitude | 13.76 (0.007) | 13.76 (0.007) | ||||||
| Pan r magnitude | 14.15 (0.005) | 14.15 (0.005) | ||||||
| Pan i magnitude | 14.50 (0.002) | 14.50 (0.002) | ||||||
| Pan z magnitude | 14.78 (0.004) | 14.78 (0.004) | ||||||
| Pan y magnitude | 14.95 (0.004) | 14.96 (0.004) | ||||||
| E(B-V) | 0.029 | |||||||
* 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.