WD 1022+594

All names: SDSS J102600.36+591424.6, Gaia DR3 1047529024413471488, SDSS J102600.35+591424.7, SDSS J102600.34+591424.6, SDSS J102600.35+591424.70, SDSS J102600.34+591424.7, WD 1022+594, SBSS 1022+594, USNO-A2.0 1425-07494645, Gaia DR2 1047529024413471488, Gaia EDR3 1047529024413471488, GALEX J102600.3+591425

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 26 00.36 (0.05) 10 26 00.35 10 26 00.36 (0.08) 10 26 00.36 10 26 00.34 (0.05) 10 26 00.35 10 25 59.47 10 26 00.35
Declination 59 14 24.68 (0.07) 59 14 24.66 59 14 24.68 (0.1) 59 14 24.68 59 14 24.66 (0.07) 59 14 24.73 59 14 20.04 59 14 24.72
Spectral type DB_A: DB DB DB_A: DB DB DB
Effective temperature [K] 18695.0 17659.0 17154.0 18710.0 (88) 18574.0 (719) 18455.0 (122) 18841.0 (183)
log(g) [cgs] 8.40 8.12 8.10 8.21 (0.03) 8.17 (0.04) 8.25 (0.04) 8.25 (0.05)
Mass [M] 0.843 0.666 0.652 0.698 (0.04) 0.741 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.1542
log(H/He) -5.022 -4.48 (0.1)
log(C/He)
log(Ca/He) <-5.09
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 4.80 (0.09) 4.90 (0.2) 4.80 4.80 (0.09)
Distance [pc] 208.50 (4) 204.15 (6) 200.00 208.50 208.50 (4)
Composition He
Proper motion (right ascension) [mas/yr] 7.737499818 (0.06) 7.742419882 (0.1) 7.737 (0.07) 10.1
Proper motion (declination) [mas/yr] 1.363115942 (0.08) 1.351856125 (0.2) 1.363 (0.08) -0.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.50
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.36 (0.009) 17.36 (0.009) 17.32 (0.02) 17.31 17.36 (0.02)
g magnitude 17.47 (0.005) 17.47 (0.005) 17.46 (0.01) 17.45 17.48 (0.01)
r magnitude 17.82 (0.006) 17.82 (0.006) 17.81 (0.01) 17.80 17.83 (0.01)
i magnitude 18.05 (0.008) 18.05 (0.008) 18.07 (0.02) 18.06 18.09 (0.02)
z magnitude 18.35 (0.03) 18.35 (0.03) 18.36 (0.04) 18.36 18.39 (0.04)
G magnitude 17.64 (0.005) 17.67 17.64 17.64 (0.003)
BP magnitude 17.58 (0.005) 17.53
RP magnitude 17.80 (0.01) 17.78
Pan g magnitude 17.52 (0.003)
Pan r magnitude 17.83 (0.006)
Pan i magnitude 18.11 (0.007)
Pan z magnitude 18.34 (0.009)
Pan y magnitude 18.50 (0.02)
E(B-V) 0.015

* 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.