Gaia DR2 6882669221937314944

All names: EC 20528-1751, Gaia DR2 6882669221937314944, GALEX J205538.8-174005, WDJ205538.86-174004.87, Gaia DR3 6882669221937314944, Gaia EDR3 6882669221937314944

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 38.94 (0.03) 20 55 38.94 20 55 38.94 20 55 38.86 (0.03) 20 55 38.94
Declination -17 40 06.45 (0.02) -17 40 06.40 -17 40 06.45 -17 40 04.87 (0.02) -17 40 06.40
Spectral type DA DA
Effective temperature [K] 15153.0 16057.0 15836.0 (109)
log(g) [cgs] 8.24 8.34 8.27 (0.006)
Mass [M] 0.758 0.806 0.782 (0.005)
log(Luminosity) [L]
Cooling age [Gyr] 0.2792 0.2947
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 21.39 (0.04) 21.37 (0.07) 21.39 21.39 (0.04) 21.37 (0.07)
Distance [pc] 46.74 (0.08) 46.78 (0.1) 46.74 46.74 (0.08) 46.78 (0.1)
Composition
Proper motion (right ascension) [mas/yr] 75.36912684 (0.04) 75.39221426 (0.1) 75.369 (0.04) 75.39221426
Proper motion (declination) [mas/yr] -98.59012796 (0.03) -98.60492915 (0.06) -98.59 (0.03) -98.60492915
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.97
V magnitude 14.95
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 15.06 (0.004)
g magnitude 14.81 (0.003)
r magnitude 15.14 (0.004)
i magnitude 15.39 (0.005)
z magnitude 15.65 (0.006)
G magnitude 14.98 (0.001) 15.00 14.98 14.98 (0.003) 15.00
BP magnitude 14.93 (0.001) 14.91 14.91
RP magnitude 15.10 (0.001) 15.10 15.10
Pan g magnitude 14.88 (0.006)
Pan r magnitude 15.14 (0.002)
Pan i magnitude 15.42 (0.002)
Pan z magnitude 15.67 (0.001)
Pan y magnitude 15.82 (0.007)
E(B-V) 0.001

* Constant surface field

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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.