SDSS J105929.60+554039.2

All names: SDSS J105929.60+554039.2, SDSS J105929.60+554039.3, Gaia DR2 856038732154955904, Gaia DR3 856038732154955904, LAMOST J105929.59+554039.2, Gaia EDR3 856038732154955904, WD 1056+559, SDSS J105929.60+554039.30, SDSS J105929.58+554039.2

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 Nitta et al. 2009 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 59 29.57 (0.1) 10 59 29.60 10 59 29.57 (0.1) 10 59 29.57 10 59 29.61 (0.1) 10 59 29.60 10 59 29.04 10 59 29.60
Declination 55 40 39.27 (0.1) 55 40 39.23 55 40 39.27 (0.1) 55 40 39.27 55 40 39.26 (0.1) 55 40 39.24 55 40 36.48 55 40 39.26
Spectral type DB_A: DB DB DB_A: DB DBH: DB
Effective temperature [K] 24251.0 16707.0 15467.0 19881.0 (224) 24742.0 (571) 17356.0 (1494) 24877.0 (553) 24658.0 (627)
log(g) [cgs] 7.97 7.74 7.63 8.08 (0.05) 8.17 (0.1) 7.95 (0.1) 8.10 (0.1) 8.10 (0.09)
Mass [M] 0.591 0.457 0.406 0.566 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.1063
log(H/He) -2.645 <-3.98
log(C/He)
log(Ca/He) <-4.53
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] 2.75 (0.2) 2.51 (0.2) 2.75 2.75 (0.2)
Distance [pc] 363.27 (21) 398.07 (31) 368.00 363.27 363.28 (21)
Composition He
Proper motion (right ascension) [mas/yr] -18.58652014 (0.1) -18.70169223 (0.3) -18.587 (0.1) -17.7
Proper motion (declination) [mas/yr] 0.519543122 (0.1) 0.737633267 (0.3) 0.52 (0.1) -0.1
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.46 (0.02) 18.45 (0.01) 18.46 (0.02) 18.46 18.48 (0.02)
g magnitude 18.48 (0.007) 18.47 18.48 (0.007) 18.47 (0.02) 18.47 18.47 (0.02)
r magnitude 18.82 (0.01) 18.82 (0.01) 18.82 (0.02) 18.82 18.82 (0.02)
i magnitude 19.11 (0.02) 19.11 (0.01) 19.10 (0.02) 19.10 19.10 (0.02)
z magnitude 19.42 (0.06) 19.42 (0.06) 19.38 (0.06) 19.38 19.38 (0.06)
G magnitude 18.67 (0.02) 18.71 18.67 18.67 (0.003)
BP magnitude 18.62 (0.02) 18.53
RP magnitude 18.83 (0.03) 18.77
Pan g magnitude 18.56 (0.008)
Pan r magnitude 18.83 (0.007)
Pan i magnitude 19.10 (0.005)
Pan z magnitude 19.33 (0.01)
Pan y magnitude 19.46 (0.05)
E(B-V) 0.021

* 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.