WD 1039+656

All names: WD 1039+656, SDSS J104253.99+652425.8, SDSS J104254.00+652425.8, Gaia DR3 1058760015999631488, Gaia EDR3 1058760015999631488, Gaia DR2 1058760015999631488, GALEX J104253.9+652426

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 10 42 54.02 (0.2) 10 42 54.00 10 42 54.02 (0.2) 10 42 54.01 (0.2) 10 42 54.00 10 42 54.24 10 42 54.00 10 42 54.00
Declination 65 24 25.83 (0.2) 65 24 25.81 65 24 25.83 (0.2) 65 24 25.83 (0.2) 65 24 25.86 65 24 22.68 65 24 25.84 65 24 25.85
Spectral type DA DA DA DA DA DA1.3 DA DA
Effective temperature [K] 40159.0 (2068) 24344.0 40810.0 (1830) 39344.0 (1014) 40612.0 (1145) 39654.0 (1061)
log(g) [cgs] 7.88 (0.2) 7.06 7.64 (0.2) 7.53 (0.1) 7.61 (0.1) 7.56 (0.1)
Mass [M] 0.61 (0.1) 0.301 0.52 (0.08) 0.508 (0.05)
log(Luminosity) [L] -0.29 (0.2)
Cooling age [Gyr] 0.0037 (0.0006) 0.0199 0.0043
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] 0.99 (0.2) 0.84 (0.3) 0.99 (0.2)
Distance [pc] 1008.28 (200) 1188.20 (353) 1008.27 (200)
Composition H H H
Proper motion (right ascension) [mas/yr] 5.810496861 (0.2) 6.196206273 (0.4) 5.81 (0.2) 8.7 9.0
Proper motion (declination) [mas/yr] 0.042779893 (0.2) 0.05484029 (0.4) 0.043 (0.2) -0.2 0.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.68 (0.02) 18.68 (0.02) 18.67 (0.02) 18.66 18.70 (0.02) 18.66 (0.03)
g magnitude 19.03 (0.01) 19.03 (0.01) 19.02 (0.02) 19.02 19.03 (0.02) 19.02 (0.02)
r magnitude 19.46 (0.02) 19.46 (0.02) 19.45 (0.02) 19.45 19.45 (0.02) 19.45 (0.02)
i magnitude 19.89 (0.03) 19.89 (0.03) 19.91 (0.03) 19.92 19.93 (0.03) 19.92 (0.03)
z magnitude 20.13 (0.1) 20.12 (0.1) 20.09 (0.1) 20.09 20.11 (0.1) 20.09 (0.1)
G magnitude 19.24 (0.03) 19.28 19.24 (0.004)
BP magnitude 19.14 (0.03) 19.03
RP magnitude 19.62 (0.05) 19.46
Pan g magnitude 19.07 (0.01)
Pan r magnitude 19.50 (0.01)
Pan i magnitude 19.85 (0.02)
Pan z magnitude 20.09 (0.02)
Pan y magnitude 19.60 (0.2)
E(B-V) 0.022

* 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.