SDSS J131717.75+391719.6

All names: Gaia DR2 1524545508398868352, SDSS J131717.75+391719.6, Gaia DR3 1524545508398868352, SDSS J131717.75+391719.60, SDSS J131717.74+391719.5, Gaia EDR3 1524545508398868352

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 17 17.74 (0.3) 13 17 17.75 13 17 17.74 (0.5) 13 17 17.74 (0.3) 13 17 17.75
Declination 39 17 19.55 (0.3) 39 17 19.57 39 17 19.54 (0.5) 39 17 19.50 (0.3) 39 17 19.56
Spectral type DBH: DBH DBH: DB
Effective temperature [K] 20454.0 19752.0 15412.0 23864.0 (1898)
log(g) [cgs] 7.99 7.43 7.11 7.98 (0.1)
Mass [M] 0.59 0.345 0.249
log(Luminosity) [L]
Cooling age [Gyr] 0.0772
log(H/He) <-4.898
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] 1.14 (0.5) 0.86 (0.7) 1.14 (0.5)
Distance [pc] 878.58 (359) 1165.92 (933) 878.58 (359)
Composition He
Proper motion (right ascension) [mas/yr] -7.140449798 (0.4) -7.954897998 (0.7) -7.14 (0.4)
Proper motion (declination) [mas/yr] 2.873569755 (0.4) 2.744255439 (1) 2.874 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.98 (0.04) 19.98 (0.04) 19.99 (0.05)
g magnitude 20.03 (0.02) 20.03 (0.02) 20.05 (0.02)
r magnitude 20.37 (0.03) 20.37 (0.03) 20.39 (0.03)
i magnitude 20.64 (0.04) 20.64 (0.04) 20.69 (0.05)
z magnitude 20.64 (0.2) 20.64 (0.2) 20.63 (0.2)
G magnitude 20.22 (0.07) 20.28 20.22 (0.005)
BP magnitude 20.11 (0.07) 20.12
RP magnitude 20.28 (0.08) 20.36
Pan g magnitude 20.11 (0.02)
Pan r magnitude 20.41 (0.02)
Pan i magnitude 20.69 (0.02)
Pan z magnitude 20.78 (0.05)
Pan y magnitude 20.16 (0.2)
E(B-V) 0.019

* 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.