Gaia DR2 2304145157102714496

All names: Gaia DR2 2304145157102714496, WDJ204745.03+865047.56, Gaia DR3 2304145157102714496, Gaia EDR3 2304145157102714496

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 47 47.97 (0.2) 20 47 47.88 20 47 47.97 20 47 45.02 (0.2) 20 47 47.88
Declination 86 50 49.14 (0.2) 86 50 49.09 86 50 49.14 86 50 47.56 (0.2) 86 50 49.09
Spectral type DA DA
Effective temperature [K] 5168.0 4857.0 4774.0 (74)
log(g) [cgs] 8.12 7.92 7.84 (0.04)
Mass [M] 0.657 0.521 0.484 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 6.2180 5.3250
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 14.13 (0.2) 14.38 (0.2) 14.13 14.13 (0.2) 14.38 (0.2)
Distance [pc] 70.78 (0.8) 69.52 (1) 70.78 70.78 (0.8) 69.52 (1)
Composition
Proper motion (right ascension) [mas/yr] 151.931005 (0.2) 151.5606427 (0.4) 151.931 (0.2) 151.5606427
Proper motion (declination) [mas/yr] 98.77860783 (0.2) 98.75294708 (0.5) 98.779 (0.2) 98.75294708
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 19.08 (0.04) 19.11 19.08 19.08 (0.004) 19.11
BP magnitude 19.58 (0.04) 19.59 19.59
RP magnitude 18.53 (0.03) 18.48 18.48
Pan g magnitude 19.60 (0.009)
Pan r magnitude 19.06 (0.01)
Pan i magnitude 18.82 (0.006)
Pan z magnitude 18.76 (0.02)
Pan y magnitude 18.70 (0.03)
E(B-V) 0.004

* 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.