SDSS J171713.10+574634.6

All names: GALEX J171713.3+574633, SDSS J171713.11+574634.6, Gaia DR2 1433108712683369088, Gaia DR3 1433108712683369088, WD 1716+578, Gaia EDR3 1433108712683369088, SDSS J171713.10+574634.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 17 17 13.17 (0.1) 17 17 13.11 17 17 13.17 (0.2) 17 17 13.17 17 17 13.11 (0.1) 17 17 12.58 17 17 13.11 17 17 13.11
Declination 57 46 33.61 (0.1) 57 46 34.63 57 46 33.64 (0.2) 57 46 33.61 57 46 34.62 (0.1) 57 46 28.20 57 46 34.61 57 46 34.61
Spectral type DA7 DA DA7 DA6.8 DA DA
Effective temperature [K] 6554.0 6668.0 (139) 6647.0 (61) 7425.0 (55)
log(g) [cgs] 7.57 7.62 (0.05) 7.89 (0.2) 8.96 (0.05)
Mass [M] 0.369 0.392 (0.03) 0.533 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 1.0590
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 8.08 (0.1) 7.99 (0.2) 8.08 8.08 (0.1)
Distance [pc] 123.76 (2) 125.14 (3) 123.76 123.76 (2)
Composition H
Proper motion (right ascension) [mas/yr] 31.31380475 (0.2) 30.87695222 (0.3) 31.314 (0.2) 33.0
Proper motion (declination) [mas/yr] -63.47165286 (0.2) -62.89767049 (0.4) -63.472 (0.2) -33.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.47 (0.03) 19.47 (0.03) 19.48 19.48 (0.04) 19.48 (0.03)
g magnitude 18.85 (0.008) 18.85 (0.008) 18.86 18.85 (0.02) 18.86 (0.02)
r magnitude 18.61 (0.009) 18.61 (0.009) 18.60 18.60 (0.01) 18.60 (0.01)
i magnitude 18.54 (0.01) 18.54 (0.01) 18.55 18.55 (0.02) 18.55 (0.02)
z magnitude 18.53 (0.04) 18.53 (0.04) 18.54 18.53 (0.04) 18.54 (0.04)
G magnitude 18.62 (0.03) 18.63 18.62 18.62 (0.003)
BP magnitude 18.81 (0.03) 18.84
RP magnitude 18.22 (0.02) 18.22
Pan g magnitude 18.84 (0.005)
Pan r magnitude 18.62 (0.005)
Pan i magnitude 18.55 (0.006)
Pan z magnitude 18.57 (0.007)
Pan y magnitude 18.60 (0.03)
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.