All names: WDJ205525.69-225720.39, TIC 77200311, 2MASS J20552568-2257204, DENIS J205525.6-225720, WISE J205525.71-225720.8, WISEA J205525.72-225720.5, UCAC4 336-202983, Gaia DR2 6808329488436621952, Gaia EDR3 6808329488436621952, WDJ205525.69-225720.38, Gaia DR3 6808329488436621952
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 55 25.76 (0.04) | 20 55 25.76 | 20 55 25.76 | 20 55 25.69 (0.04) | 20 55 25.76 | |||||
Declination | -22 57 21.45 (0.02) | -22 57 21.42 | -22 57 21.45 | -22 57 20.39 (0.02) | -22 57 21.42 | |||||
Spectral type | DA | DA | ||||||||
Effective temperature | [K] | 16289.0 | 17571.0 | 17593.0 (147) | ||||||
log(g) | [cgs] | 8.29 | 8.44 | 8.36 (0.007) | ||||||
Mass | [M☉] | 0.794 | 0.87 | 0.839 (0.006) | ||||||
log(Luminosity) | [L☉] | |||||||||
Cooling age | [Gyr] | 0.2476 | 0.2681 | |||||||
log(H/He) | ||||||||||
log(C/He) | ||||||||||
log(Ca/He) | ||||||||||
log(Ca/H) | ||||||||||
Parallax | [mas] | 17.59 (0.04) | 17.69 (0.06) | 17.59 | 17.59 (0.04) | 17.69 (0.06) | ||||
Distance | [pc] | 56.84 (0.1) | 56.54 (0.2) | 56.84 | 56.84 (0.1) | 56.54 (0.2) | ||||
Composition | ||||||||||
Proper motion (right ascension) | [mas/yr] | 56.38667758 (0.04) | 56.36922452 (0.09) | 56.387 (0.04) | 56.36922452 | |||||
Proper motion (declination) | [mas/yr] | -66.64351855 (0.03) | -66.58377283 (0.06) | -66.644 (0.03) | -66.58377283 | |||||
Variability | ||||||||||
Magnetic | ||||||||||
Bd | [MG] | |||||||||
Infrared excess (disk) | ||||||||||
Binarity | ||||||||||
B magnitude | 15.33 (0.02) | |||||||||
V magnitude | 15.28 (0.01) | |||||||||
R magnitude | 15.79 (0.05) | |||||||||
I magnitude | 15.53 (0.06) | |||||||||
J magnitude | 15.77 (0.06) | |||||||||
H magnitude | 15.77 (0.1) | |||||||||
K magnitude | 15.30 (0.1) | |||||||||
u magnitude | ||||||||||
g magnitude | 15.21 (0.01) | |||||||||
r magnitude | 15.45 (0.01) | |||||||||
i magnitude | ||||||||||
z magnitude | ||||||||||
G magnitude | 15.35 (0.001) | 15.37 | 15.35 | 15.35 (0.003) | 15.37 | |||||
BP magnitude | 15.30 (0.001) | 15.27 | 15.27 | |||||||
RP magnitude | 15.50 (0.002) | 15.50 | 15.50 | |||||||
Pan g magnitude | 15.24 (0.003) | |||||||||
Pan r magnitude | 15.52 (0.003) | |||||||||
Pan i magnitude | 15.81 (0.001) | |||||||||
Pan z magnitude | 16.07 (0.005) | |||||||||
Pan y magnitude | 16.22 (0.005) | |||||||||
E(B-V) | 0.002 |
* 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.