SDSS J173635.42+642113.9

All names: GALEX J173635.3+642114, Gaia DR2 1440509662889127296, SDSS J173635.42+642113.90, SDSS J173635.42+642113.9, Gaia DR3 1440509662889127296, Gaia EDR3 1440509662889127296, SDSS J173635.41+642113.9

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 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 36 35.45 (0.1) 17 36 35.42 17 36 35.45 (0.2) 17 36 35.45 17 36 35.42 (0.1) 17 36 35.42
Declination 64 21 13.44 (0.1) 64 21 13.99 64 21 13.46 (0.1) 64 21 13.44 64 21 14.07 (0.1) 64 21 13.92
Spectral type DBA: DB DBA DBA DB
Effective temperature [K] 12046.0 11518.0 11252.0 11198.0 (89) 12174.0 (439) 12186.0 (262)
log(g) [cgs] 8.13 8.09 8.08 8.00 (0) 8.22 (0.05) 8.70 (0.2)
Mass [M] 0.666 0.637 0.629 0.719 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.5104
log(H/He) -5.117 -5.15 (0.1)
log(C/He)
log(Ca/He) <-10.62
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] 5.38 (0.1) 5.22 (0.1) 5.38 5.38 (0.1)
Distance [pc] 185.93 (4) 191.68 (5) 191.00 185.93 185.93 (4)
Composition He
Proper motion (right ascension) [mas/yr] 12.71865974 (0.2) 12.74671596 (0.3) 12.719 (0.2)
Proper motion (declination) [mas/yr] -39.45450053 (0.2) -39.23119796 (0.3) -39.455 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.43 (0.02) 18.43 (0.02) 18.43 (0.02)
g magnitude 18.40 (0.007) 18.40 (0.007) 18.43 (0.02)
r magnitude 18.55 (0.009) 18.55 (0.009) 18.56 (0.02)
i magnitude 18.66 (0.01) 18.66 (0.01) 18.70 (0.03)
z magnitude 18.94 (0.04) 18.94 (0.04) 18.94 (0.04)
G magnitude 18.45 (0.02) 18.49 18.45 18.45 (0.003)
BP magnitude 18.44 (0.02) 18.45
RP magnitude 18.46 (0.02) 18.46
Pan g magnitude 18.44 (0.009)
Pan r magnitude 18.60 (0.005)
Pan i magnitude 18.76 (0.004)
Pan z magnitude 18.92 (0.01)
Pan y magnitude 19.10 (0.02)
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.