All names: NLTT 44783, WDJ170830.01+863423.05, Gaia DR2 1724841037664857728, Gaia DR3 1724841037664857728, Gaia EDR3 1724841037664857728, 2MASS J17083088+8634241, TIC 160193474, LP 9-131, WDJ170830.01+863423.04
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 08 28.72 (0.09) | 17 08 28.76 | 17 08 28.72 | 17 08 30.02 (0.09) | 17 08 28.76 | |||
| Declination | 86 34 25.16 (0.08) | 86 34 25.09 | 86 34 25.16 | 86 34 23.04 (0.07) | 86 34 25.09 | |||
| Spectral type | DC: | D | ||||||
| Effective temperature | [K] | 7315.0 (133) | ||||||
| log(g) | [cgs] | 8.28 (0.03) | ||||||
| Mass | [M☉] | 0.754 (0.03) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 15.01 (0.09) | 14.89 (0.1) | 15.01 | 15.01 (0.09) | 14.89 (0.1) | ||
| Distance | [pc] | 66.60 (0.4) | 67.18 (0.6) | 66.60 | 66.60 (0.4) | 67.18 (0.6) | ||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -72.83091482 (0.1) | -72.52640676 (0.2) | -72.831 (0.1) | -72.52640676 | |||
| Proper motion (declination) | [mas/yr] | 132.3102596 (0.09) | 131.8164513 (0.2) | 132.31 (0.09) | 131.8164513 | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.21 (0.1) | |||||||
| H magnitude | 15.85 (0.2) | |||||||
| K magnitude | 15.09 (0.2) | |||||||
| u magnitude | ||||||||
| g magnitude | ||||||||
| r magnitude | ||||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 17.84 (0.01) | 17.87 | 17.84 | 17.84 (0.003) | 17.87 | |||
| BP magnitude | 17.98 (0.01) | 17.96 | 17.96 | |||||
| RP magnitude | 17.57 (0.02) | 17.59 | 17.59 | |||||
| Pan g magnitude | 17.98 (0.009) | |||||||
| Pan r magnitude | 17.86 (0.01) | |||||||
| Pan i magnitude | 17.91 (0.02) | |||||||
| Pan z magnitude | 18.00 (0.01) | |||||||
| Pan y magnitude | 0.00 (0) | |||||||
| E(B-V) | 0.005 | |||||||
* 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.