WD 1609+003

All names: WD 1609+003, SDSS J161225.69+001027.8, SDSS J161225.68+001027.8, Gaia EDR3 4408338047319138304, Gaia DR3 4408338047319138304, Gaia DR2 4408338047319138304

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Harris et al. 2003 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004
Right ascension 16 12 25.70 (0.7) 16 12 25.69 16 12 25.70 (0.8) 16 12 25.69 (0.7) 16 12 25.69 16 12 24.53 16 12 25.69 16 12 25.69
Declination 00 10 27.93 (0.7) 00 10 27.89 00 10 27.93 (0.6) 00 10 27.92 (0.7) 00 10 27.88 00 10 21.72 00 10 27.79 00 10 27.80
Spectral type DA4: DA4: DA4 DA DA3.6 DA
Effective temperature [K] 13680.0 13696.0 (1872) 14643.0 (2429) 14055.0 (1807)
log(g) [cgs] 8.18 7.80 (0.3) 7.78 (0.3) 7.77 (0.3)
Mass [M] 0.717 0.504 (0.2)
log(Luminosity) [L]
Cooling age [Gyr] 0.3384
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] 1.85 (0.8) 2.06 (1) 1.85 (0.8)
Distance [pc] 541.06 (227) 485.55 (242) 541.07 (227)
Composition H
Proper motion (right ascension) [mas/yr] 6.672569333 (0.9) 5.965888193 (2) 6.673 (0.9) 7.5 11.0
Proper motion (declination) [mas/yr] 0.493345757 (0.8) 1.381901159 (1) 0.493 (0.8) -5.9 -8.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.52 (0.05) 20.56 20.50 (0.05) 20.55 (0.05) 20.56 20.55 (0.05) 20.56 (0.05)
g magnitude 20.23 (0.02) 20.26 20.23 (0.02) 20.26 (0.02) 20.26 20.25 (0.02) 20.26 (0.02)
r magnitude 20.39 (0.03) 20.41 20.38 (0.03) 20.41 (0.03) 20.41 20.40 (0.03) 20.41 (0.03)
i magnitude 20.59 (0.04) 20.63 20.59 (0.04) 20.63 (0.04) 20.63 20.64 (0.04) 20.63 (0.04)
z magnitude 21.42 (0.3) 21.21 21.13 (0.3) 21.21 (0.3) 21.21 21.23 (0.3) 21.21 (0.3)
G magnitude 20.38 (0.09) 20.46 20.38 (0.008)
BP magnitude 20.43 (0.09) 20.27
RP magnitude 20.50 (0.09) 20.36
Pan g magnitude 20.23 (0.02)
Pan r magnitude 20.53 (0.04)
Pan i magnitude 20.74 (0.03)
Pan z magnitude 20.97 (0.02)
Pan y magnitude
E(B-V) 0.101

* 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.