SDSS J104318.45+415412.5

All names: SDSS J104318.44+415412.50, Gaia DR3 780054301057213184, SDSS J104318.44+415412.5, Gaia DR2 780054301057213184, SDSS J104318.45+415412.5, GALEX J104318.4+415412, LAMOST J104318.44+415412.4, WD 1040+421, Gaia EDR3 780054301057213184

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Nitta et al. 2009 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 43 18.47 (0.2) 10 43 18.45 10 43 18.47 (0.4) 10 43 18.45 (0.2) 10 43 18.45 10 43 17.88 10 43 18.44
Declination 41 54 12.43 (0.2) 41 54 12.54 41 54 12.44 (0.3) 41 54 12.58 (0.2) 41 54 12.55 41 54 09.72 41 54 12.49
Spectral type DB DB DB DB DB DB
Effective temperature [K] 29776.0 20738.0 18109.0 26291.0 (919) 26020.0 (846) 25467.0 (746)
log(g) [cgs] 8.05 7.77 7.64 7.77 (0.1) 7.78 (0.1) 7.86 (0.1)
Mass [M] 0.641 0.481 0.415 0.532 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.0592
log(H/He) <-3.46
log(C/He)
log(Ca/He)
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] 1.28 (0.3) 1.64 (0.5) 1.28 (0.3)
Distance [pc] 782.59 (168) 609.24 (172) 782.60 (168)
Composition He
Proper motion (right ascension) [mas/yr] 11.87352662 (0.3) 11.72887277 (0.8) 11.874 (0.3) 5.5
Proper motion (declination) [mas/yr] -9.228096071 (0.2) -9.18997024 (0.5) -9.228 (0.2) -5.7
Variability VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.95 (0.02) 18.95 (0.02) 19.04 (0.03) 19.04 19.05 (0.03)
g magnitude 18.99 (0.01) 18.95 18.99 (0.01) 18.95 (0.02) 18.95 18.94 (0.02)
r magnitude 19.40 (0.01) 19.40 (0.01) 19.45 (0.02) 19.44 19.43 (0.02)
i magnitude 19.65 (0.02) 19.65 (0.02) 19.70 (0.03) 19.70 19.70 (0.03)
z magnitude 19.94 (0.08) 19.94 (0.08) 19.94 (0.08) 19.93 19.92 (0.08)
G magnitude 19.24 (0.04) 19.28 19.24 (0.004)
BP magnitude 19.12 (0.04) 19.15
RP magnitude 19.42 (0.06) 19.51
Pan g magnitude 19.11 (0.01)
Pan r magnitude 19.42 (0.02)
Pan i magnitude 19.74 (0.01)
Pan z magnitude 19.93 (0.02)
Pan y magnitude 19.82 (0.1)
E(B-V) 0.017

* 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.