All names: SDSS J171722.06+580558.7, USNO-B1.0 1480-00302240, SDSS J171722.08+580558.8, [VV2000] J171722.3+580600, [VV2003] J171722.3+580600, SDSSJ171722.09+580558.8, TIC 198412771, SBSS 1716+581, GALEX J171722.0+580559, Gaia DR3 1433879818228293632, Gaia DR2 1433879818228293632, V* V366 Dra, SDSS J171722.10+580559.9, 2MASS J17172203+5805585, Gaia EDR3 1433879818228293632
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 17 22.05 (0.04) | 17 17 22.07 | 17 17 22.09 | 17 17 22.06 (0.05) | 17 17 22.06 (0.04) | 17 17 22.07 | |||
| Declination | 58 05 58.65 (0.04) | 58 05 58.74 | 58 05 58.80 | 58 05 58.65 (0.06) | 58 05 58.71 (0.04) | 58 05 58.73 | |||
| Spectral type | sdBV+G9 | sdO | SDO | ||||||
| Effective temperature | [K] | 34400.0 | 34783.0 (264) | ||||||
| log(g) | [cgs] | 5.75 | 5.48 (0.04) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.35 (0.04) | 0.28 (0.06) | 0.28 (0.06) | 0.35 (0.04) | ||||
| Distance | [pc] | 2881.21 (356) | 3617.95 (804) | 3617.46 (803) | 2881.01 (356) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.598876072 (0.05) | -4.797 (0.1) | -4.796701868 (0.1) | -4.599 (0.05) | 1.2 | |||
| Proper motion (declination) | [mas/yr] | -4.143506422 (0.06) | -4.305 (0.1) | -4.304605462 (0.1) | -4.144 (0.06) | -0.1 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.60 | ||||||||
| V magnitude | 16.78 | ||||||||
| R magnitude | 16.70 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.42 (0.1) | 16.42 (0.1) | |||||||
| H magnitude | 15.87 | ||||||||
| K magnitude | 15.90 | ||||||||
| u magnitude | 16.48 (0.006) | 16.48 (0.006) | 16.48 (0.006) | 16.50 (0.02) | |||||
| g magnitude | 16.64 (0.004) | 16.64 (0.004) | 16.64 (0.004) | 16.67 (0.02) | |||||
| r magnitude | 16.92 (0.004) | 16.92 (0.004) | 16.92 (0.004) | 16.91 (0.02) | |||||
| i magnitude | 17.03 (0.005) | 17.03 (0.005) | 17.03 (0.005) | 17.03 (0.02) | |||||
| z magnitude | 17.15 (0.01) | 17.15 (0.01) | 17.15 (0.01) | 17.17 (0.02) | |||||
| G magnitude | 16.74 (0.007) | 16.76 (0.001) | 16.76 | 16.74 (0.003) | |||||
| BP magnitude | 16.71 (0.007) | 16.65 (0.009) | 16.65 | ||||||
| RP magnitude | 16.72 (0.006) | 16.70 (0.01) | 16.70 | ||||||
| Pan g magnitude | 16.73 (0.003) | 16.73 (0.003) | |||||||
| Pan r magnitude | 16.95 (0.004) | 16.95 (0.004) | |||||||
| Pan i magnitude | 17.06 (0.005) | 17.06 (0.005) | |||||||
| Pan z magnitude | 17.20 (0.005) | 17.20 (0.005) | |||||||
| Pan y magnitude | 17.22 (0.02) | 17.22 (0.02) | |||||||
| E(B-V) | 0.024 | ||||||||
* 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.