All names: TIC 294594021, 2MASS J20080549+4819028, Gaia EDR3 2087423443810008960, KPD 2006+4810, WD 2006+481, 2006+481, Gaia DR3 2087423443810008960, Gaia DR2 2087423443810008960, UCAC4 692-072863
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Leggett et al. 2018 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 08 05.49 (0.02) | 20 08 05.49 (0.03) | 20 08 05.50 (0.02) | 20 08 01.18 | ||||
| Declination | 48 19 02.58 (0.03) | 48 19 02.59 (0.04) | 48 19 02.88 (0.03) | 48 19 36.48 | ||||
| Spectral type | DB | sdO | ||||||
| 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] | 1.00 (0.03) | 1.32 (0.5) | 1.02 (0.04) | 1.00 (0.03) | |||
| Distance | [pc] | 1004.17 (28) | 757.58 (258) | 984.20 (37) | 1004.12 (28) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -1.698463424 (0.03) | -1.641271399 (0.07) | -1.698 (0.03) | ||||
| Proper motion (declination) | [mas/yr] | -18.5404228 (0.03) | -18.50580532 (0.09) | -18.54 (0.03) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 15.25 (0.2) | |||||||
| V magnitude | 15.29 (0.1) | |||||||
| R magnitude | 15.77 (0.09) | |||||||
| I magnitude | ||||||||
| J magnitude | 15.59 (0.06) | |||||||
| H magnitude | 15.61 (0.1) | |||||||
| K magnitude | 15.61 (0.2) | |||||||
| u magnitude | ||||||||
| g magnitude | 15.10 (0.01) | |||||||
| r magnitude | 15.37 (0.01) | |||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 15.29 (0.002) | 15.30 | 15.29 (0.003) | |||||
| BP magnitude | 15.24 (0.002) | 15.21 | ||||||
| RP magnitude | 15.35 (0.002) | 15.35 | ||||||
| Pan g magnitude | 15.24 (0.003) | |||||||
| Pan r magnitude | 15.46 (0.002) | |||||||
| Pan i magnitude | 15.70 (0.003) | |||||||
| Pan z magnitude | 15.89 (0.001) | |||||||
| Pan y magnitude | 16.03 (0.003) | |||||||
| E(B-V) | 0.129 | |||||||
* 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.