All names: Gaia EDR3 2291406524621717120, SDSS J200615.67+781917.4, WD 2008+781, SDSS J200615.67+781917.3, Gaia DR2 2291406524621717120, SDSS J200615.66+781917.3, SDSS J200615.69+781917.3, WISE J200615.79+781917.4, WISEA J200615.79+781917.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 06 15.65 (0.7) | 20 06 15.70 | 20 06 15.65 (0.8) | 20 06 15.70 | 20 06 14.95 | |||
| Declination | 78 19 17.19 (0.7) | 78 19 17.34 | 78 19 17.20 (0.8) | 78 19 17.34 | 78 19 12.36 | |||
| Spectral type | DA+dM | DA d | ||||||
| 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] | 3.34 (0.7) | 3.42 (0.8) | |||||
| Distance | [pc] | 299.58 (61) | 292.77 (69) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -1.171664419 (1) | -3.509216784 (2) | |||||
| Proper motion (declination) | [mas/yr] | -8.537855788 (0.9) | -3.796143226 (1) | |||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 21.03 (0.1) | 21.00 (0.1) | 21.60 | |||||
| g magnitude | 20.23 (0.03) | 20.22 (0.03) | 20.66 | |||||
| r magnitude | 20.10 (0.03) | 20.08 (0.03) | 20.50 | |||||
| i magnitude | 19.30 (0.02) | 19.29 (0.03) | 19.75 | |||||
| z magnitude | 18.66 (0.05) | 18.65 (0.05) | 19.21 | |||||
| G magnitude | 20.36 (0.07) | 20.26 | ||||||
| BP magnitude | 20.13 (0.07) | 20.14 | ||||||
| RP magnitude | 18.92 (0.06) | 18.89 | ||||||
| Pan g magnitude | 20.20 (0.02) | |||||||
| Pan r magnitude | 20.12 (0.02) | |||||||
| Pan i magnitude | 19.42 (0.02) | |||||||
| Pan z magnitude | 18.82 (0.02) | |||||||
| Pan y magnitude | 18.46 (0.04) | |||||||
| E(B-V) | 0.060 | |||||||
* 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.