Gaia DR2 2302403668123226880

All names: WDJ195527.49+845147.42, Gaia DR3 2302403668123226880, GALEX J195527.8+845146, Gaia DR2 2302403668123226880, Gaia EDR3 2302403668123226880

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 19 55 27.93 (0.1) 19 55 27.92 19 55 27.93 19 55 27.49 (0.1) 19 55 27.92
Declination 84 51 47.03 (0.1) 84 51 47.04 84 51 47.03 84 51 47.42 (0.1) 84 51 47.04
Spectral type DC: D
Effective temperature [K] 7177.0 6936.0 6752.0 (189)
log(g) [cgs] 8.26 8.17 8.09 (0.04)
Mass [M] 0.757 0.678 0.626 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 2.3430 2.2160
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.78 (0.1) 10.82 (0.1) 10.78 10.78 (0.1) 10.82 (0.1)
Distance [pc] 92.78 (1) 92.42 (1) 92.78 92.78 (1) 92.42 (1)
Composition
Proper motion (right ascension) [mas/yr] 37.18939362 (0.1) 37.16301971 (0.3) 37.189 (0.1) 37.16301971
Proper motion (declination) [mas/yr] -24.33059879 (0.2) -24.42263892 (0.3) -24.331 (0.2) -24.42263892
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 18.54 (0.02) 18.56 18.54 18.54 (0.003) 18.56
BP magnitude 18.71 (0.02) 18.70 18.70
RP magnitude 18.23 (0.02) 18.21 18.21
Pan g magnitude 18.72 (0.005)
Pan r magnitude 18.57 (0.007)
Pan i magnitude 18.55 (0.008)
Pan z magnitude 18.62 (0.008)
Pan y magnitude 18.63 (0.03)
E(B-V) 0.006

* 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.