All names: Gaia DR2 663264446538001792, Gaia EDR3 663264446538001792, EPIC 211918966, GALEX J082056.9+190034, TIC 14455869, WD 0818+191, SDSS J082056.96+190034.0, SDSS J082056.97+190034.0, Gaia DR3 663264446538001792, 2MASS J08205699+1900342
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 20 56.91 (0.1) | 08 20 56.96 | 08 20 56.92 (0.1) | 08 20 56.97 | 08 20 56.99 (0.1) | 08 20 56.71 | |||
| Declination | 19 00 33.72 (0.06) | 19 00 34.06 | 19 00 33.74 (0.09) | 19 00 33.98 | 19 00 34.15 (0.06) | 19 00 33.12 | |||
| Spectral type | WD+M | D+M | WD M | ||||||
| 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] | 2.38 (0.1) | 2.43 (0.2) | 2.38 (0.1) | |||||
| Distance | [pc] | 420.41 (20) | 411.94 (38) | 420.42 (20) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -65.30463951 (0.1) | -65.45065213 (0.3) | -65.305 (0.1) | |||||
| Proper motion (declination) | [mas/yr] | -26.53676611 (0.08) | -26.67374171 (0.2) | -26.537 (0.08) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.13 (0.04) | ||||||||
| H magnitude | 14.49 (0.05) | ||||||||
| K magnitude | 14.26 (0.05) | ||||||||
| u magnitude | 20.11 (0.05) | 20.14 | 20.13 (0.05) | 20.14 | |||||
| g magnitude | 19.10 (0.01) | 19.10 | 19.09 (0.01) | 19.10 | |||||
| r magnitude | 18.10 (0.007) | 18.10 | 18.09 (0.008) | 18.10 | |||||
| i magnitude | 17.01 (0.005) | 17.00 | 16.98 (0.006) | 16.99 | |||||
| z magnitude | 16.40 (0.008) | 16.40 | 16.37 (0.009) | 16.39 | |||||
| G magnitude | 17.66 (0.02) | 17.68 | 17.66 (0.003) | ||||||
| BP magnitude | 18.75 (0.02) | 18.76 | |||||||
| RP magnitude | 16.57 (0.005) | 16.58 | |||||||
| Pan g magnitude | 18.97 (0.01) | ||||||||
| Pan r magnitude | 18.10 (0.004) | ||||||||
| Pan i magnitude | 17.02 (0.003) | ||||||||
| Pan z magnitude | 16.50 (0.005) | ||||||||
| Pan y magnitude | 16.25 (0.008) | ||||||||
| E(B-V) | 0.027 | ||||||||
* 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.