Gaia DR2 4358066107952246784

All names: WDJ163745.87-020420.89, J1637-0204, Gaia DR3 4358066107952246784, Gaia DR2 4358066107952246784, SDSS J163745.87-020421.0, GALEX J163745.9-020420, SDSS J163745.87-020420.9, Gaia EDR3 4358066107952246784

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 16 37 45.89 (0.05) 16 37 45.89 16 37 45.89 16 37 45.87 (0.05) 16 37 45.89
Declination -02 04 22.27 (0.03) -02 04 22.23 -02 04 22.27 -02 04 20.89 (0.03) -02 04 22.23
Spectral type DA DA DA DA DA
Effective temperature [K] 8046.0 (34) 8080.0 (32) 8046.0 (34) 8095.0 7827.0 8295.0 (66)
log(g) [cgs] 7.98 (0.009) 7.99 (0.009) 7.98 (0.01) 7.99 7.89 8.04 (0.01)
Mass [M] 0.582 (0.007) 0.59 (0.008) 0.582 (0.008) 0.589 0.514 0.62 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 1.0700 1.0270 1.0250
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 16.34 (0.06) 16.34 (0.09) 16.34 (0.09) 16.34 16.34 (0.06) 16.34 (0.09)
Distance [pc] 61.20 (0.2) 61.20 (0.3) 61.21 (0.3) 61.20 61.20 (0.2) 61.21 (0.3)
Composition H H
Proper motion (right ascension) [mas/yr] 14.24504807 (0.09) 14.08534848 (0.2) 14.245 (0.09) 14.08534848
Proper motion (declination) [mas/yr] -86.02809782 (0.06) -85.93780376 (0.1) -86.028 (0.06) -85.93780376
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.40 (0.01)
H magnitude
K magnitude 16.26 (0.04)
u magnitude 17.40 (0.01) 17.39 (0.01) 17.39 (0.01)
g magnitude 16.97 (0.004) 16.97 (0.004)
r magnitude 16.91 (0.005) 16.91 (0.005)
i magnitude 16.91 (0.006) 16.91 (0.006)
z magnitude 17.08 (0.02) 17.08 (0.02)
G magnitude 16.82 (0.004) 16.84 16.82 16.82 (0.003) 16.84
BP magnitude 16.94 (0.004) 16.93 16.93
RP magnitude 16.59 (0.004) 16.61 16.61
Pan g magnitude 16.92 (0.003) 16.92 (0.003)
Pan r magnitude 16.88 (0.002) 16.88 (0.002)
Pan i magnitude 16.92 (0.005) 16.92 (0.005)
Pan z magnitude 17.01 (0.003) 17.01 (0.004)
Pan y magnitude 17.07 (0.009) 17.07 (0.008)
E(B-V) 0.002

* 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.