Gaia DR2 1863047617762316416

All names: WDJ204430.11+330735.78, WDJ204430.11+330735.79, Gaia DR3 1863047617762316416, Gaia EDR3 1863047617762316416, Gaia DR2 1863047617762316416

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 44 30.08 (0.1) 20 44 30.08 20 44 30.08 20 44 30.11 (0.1) 20 44 30.08
Declination 33 07 34.42 (0.2) 33 07 34.46 33 07 34.42 33 07 35.78 (0.2) 33 07 34.46
Spectral type DC: DC
Effective temperature [K] 5499.0 5222.0 5421.0 (114)
log(g) [cgs] 8.45 8.29 8.40 (0.05)
Mass [M] 0.875 0.759 0.845 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 6.8510 6.6010
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 14.48 (0.2) 14.43 (0.3) 14.48 14.48 (0.2) 14.43 (0.3)
Distance [pc] 69.06 (1) 69.30 (1) 69.06 69.06 (1) 69.30 (1)
Composition
Proper motion (right ascension) [mas/yr] -26.08005955 (0.2) -26.70139132 (0.4) -26.08 (0.2) -26.70139132
Proper motion (declination) [mas/yr] -85.2648252 (0.3) -85.60620243 (0.5) -85.265 (0.3) -85.60620243
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 19.26 (0.03) 19.29 19.26 19.26 (0.004) 19.29
BP magnitude 19.70 (0.03) 19.65 19.65
RP magnitude 18.76 (0.02) 18.75 18.75
Pan g magnitude 19.73 (0.01)
Pan r magnitude 19.23 (0.02)
Pan i magnitude 19.07 (0.007)
Pan z magnitude 19.02 (0.02)
Pan y magnitude 19.12 (0.07)
E(B-V) 0.007

* 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.