All names: Gaia DR3 6903515756241694080, UCAC4 406-134797, TIC 51820346, WDJ204918.04-085633.10, 2MASS J20491803-0856331, Gaia EDR3 6903515756241694080, Gaia DR2 6903515756241694080, DENIS J204918.0-085632, WDJ204918.04-085633.09, WISEA J204918.10-085633.2, WISE J204918.09-085633.0
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 20 49 18.13 (0.03) | 20 49 18.12 | 20 49 18.13 | 20 49 18.04 (0.03) | 20 49 18.12 | |||||
Declination | -08 56 33.75 (0.02) | -08 56 33.73 | -08 56 33.75 | -08 56 33.10 (0.02) | -08 56 33.73 | |||||
Spectral type | DA | DA | ||||||||
Effective temperature | [K] | 9513.0 | 9385.0 | 9565.0 (47) | ||||||
log(g) | [cgs] | 8.16 | 8.09 | 8.17 (0.008) | ||||||
Mass | [M☉] | 0.696 | 0.631 | 0.702 (0.007) | ||||||
log(Luminosity) | [L☉] | |||||||||
Cooling age | [Gyr] | 0.8649 | 0.8334 | |||||||
log(H/He) | ||||||||||
log(C/He) | ||||||||||
log(Ca/He) | ||||||||||
log(Ca/H) | ||||||||||
Parallax | [mas] | 21.51 (0.04) | 21.54 (0.06) | 21.51 | 21.51 (0.04) | 21.54 (0.06) | ||||
Distance | [pc] | 46.49 (0.1) | 46.43 (0.1) | 46.49 | 46.49 (0.1) | 46.43 (0.1) | ||||
Composition | ||||||||||
Proper motion (right ascension) | [mas/yr] | 84.7762254 (0.04) | 84.79763145 (0.1) | 84.776 (0.04) | 84.79763145 | |||||
Proper motion (declination) | [mas/yr] | -40.83576531 (0.03) | -40.76743957 (0.07) | -40.836 (0.03) | -40.76743957 | |||||
Variability | ||||||||||
Magnetic | ||||||||||
Bd | [MG] | |||||||||
Infrared excess (disk) | ||||||||||
Binarity | ||||||||||
B magnitude | 16.11 (0.01) | |||||||||
V magnitude | 15.94 (0.01) | |||||||||
R magnitude | 16.14 (0.2) | |||||||||
I magnitude | 15.73 (0.05) | |||||||||
J magnitude | 15.86 (0.06) | |||||||||
H magnitude | 15.78 (0.2) | |||||||||
K magnitude | 15.56 (0.2) | |||||||||
u magnitude | ||||||||||
g magnitude | 15.90 (0.04) | |||||||||
r magnitude | 16.03 (0.01) | |||||||||
i magnitude | ||||||||||
z magnitude | ||||||||||
G magnitude | 15.90 (0.002) | 15.92 | 15.90 | 15.90 (0.003) | 15.92 | |||||
BP magnitude | 15.97 (0.002) | 15.96 | 15.96 | |||||||
RP magnitude | 15.78 (0.002) | 15.79 | 15.79 | |||||||
Pan g magnitude | 15.93 (0.008) | |||||||||
Pan r magnitude | 15.98 (0.005) | |||||||||
Pan i magnitude | 16.11 (0.0008) | |||||||||
Pan z magnitude | 16.26 (0.003) | |||||||||
Pan y magnitude | 16.34 (0.008) | |||||||||
E(B-V) | 0.001 |
* 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.