Gaia DR2 4237759126196907264

All names: WDJ200439.45+013119.43, Gaia EDR3 4237759126196907264, WDJ200439.45+013119.42, GALEX J200439.4+013119, Gaia DR2 4237759126196907264, Gaia DR3 4237759126196907264

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 04 39.38 (0.08) 20 04 39.38 20 04 39.38 20 04 39.45 (0.08) 20 04 39.38
Declination 01 31 17.92 (0.05) 01 31 17.97 01 31 17.92 01 31 19.43 (0.05) 01 31 17.97
Spectral type DB D
Effective temperature [K] 10451.0 10507.0 10995.0 (201)
log(g) [cgs] 8.32 8.27 8.30 (0.02)
Mass [M] 0.804 0.749 0.774 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.8724 0.8117
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.31 (0.09) 10.48 (0.1) 10.31 10.31 (0.09) 10.48 (0.1)
Distance [pc] 96.96 (0.8) 95.46 (1) 96.96 96.96 (0.8) 95.46 (1)
Composition
Proper motion (right ascension) [mas/yr] -73.54796989 (0.1) -73.62141752 (0.2) -73.548 (0.1) -73.62141752
Proper motion (declination) [mas/yr] -94.09979703 (0.06) -94.09967155 (0.1) -94.1 (0.06) -94.09967155
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 17.40 (0.008) 17.42 17.40 17.40 (0.003) 17.42
BP magnitude 17.40 (0.008) 17.37 17.37
RP magnitude 17.37 (0.008) 17.35 17.35
Pan g magnitude 17.41 (0.006)
Pan r magnitude 17.52 (0.003)
Pan i magnitude 17.68 (0.003)
Pan z magnitude 17.85 (0.004)
Pan y magnitude 17.96 (0.008)
E(B-V) 0.018

* 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.