SDSS J171748.13+284118.5

All names: SDSS J171748.13+284118.5, Gaia DR3 4575340974377331072, Gaia EDR3 4575340974377331072, GALEX J171748.2+284119, SDSS J171748.13+284118.6, WD 1715+287, Gaia DR2 4575340974377331072

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 17 48.14 (0.3) 17 17 48.14 17 17 48.14 (0.4) 17 17 48.13 (0.3) 17 17 48.14 17 17 47.83 17 17 48.13
Declination 28 41 18.72 (0.3) 28 41 18.58 28 41 18.72 (0.4) 28 41 18.59 (0.3) 28 41 18.56 28 41 16.44 28 41 18.55
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 21034.0 16433.0 (739) 16924.0 (693)
log(g) [cgs] 8.44 8.10 (0.2) 7.96 (0.2)
Mass [M☉] 0.896 0.595 (0.08)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.1509
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] 1.87 (0.4) 1.92 (0.5) 1.87 (0.4)
Distance [pc] 534.78 (125) 521.29 (145) 534.79 (125)
Composition H
Proper motion (right ascension) [mas/yr] 2.667776536 (0.5) 2.859657882 (0.9) 2.668 (0.5) 5.6
Proper motion (declination) [mas/yr] 8.102653799 (0.5) 8.469689385 (0.9) 8.103 (0.5) 4.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.36 (0.05) 20.36 (0.05) 20.36 (0.06) 20.35 20.34 (0.05)
g magnitude 19.99 (0.02) 19.99 (0.02) 20.02 (0.02) 20.01 20.01 (0.02)
r magnitude 20.29 (0.02) 20.29 (0.02) 20.29 (0.02) 20.28 20.29 (0.02)
i magnitude 20.62 (0.04) 20.62 (0.04) 20.59 (0.04) 20.58 20.58 (0.04)
z magnitude 20.80 (0.2) 20.80 (0.2) 20.77 (0.2) 20.76 20.76 (0.2)
G magnitude 20.15 (0.08) 20.23 20.15 (0.006)
BP magnitude 20.00 (0.08) 20.07
RP magnitude 20.33 (0.1) 20.07
Pan g magnitude 20.04 (0.009)
Pan r magnitude 20.29 (0.02)
Pan i magnitude 20.53 (0.04)
Pan z magnitude 20.64 (0.06)
Pan y magnitude
E(B-V) 0.029

* 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.