SDSS J170907.66+275125.2

All names: SDSS J170907.65+275125.2, Gaia EDR3 4574987893705312384, SDSS J170907.66+275125.2, GALEX J170907.6+275125, Gaia DR3 4574987893705312384, Gaia DR2 4574987893705312384

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 09 07.64 (0.2) 17 09 07.66 17 09 07.65 (0.2) 17 09 07.67 (0.2) 17 09 07.66
Declination 27 51 25.23 (0.2) 27 51 25.21 27 51 25.23 (0.3) 27 51 25.14 (0.2) 27 51 25.21
Spectral type DA DA DA DA
Effective temperature [K] 13120.0 14290.0 (308)
log(g) [cgs] 8.35 8.39 (0.07)
Mass [M] 0.824 0.841 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.4945
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] 3.40 (0.2) 3.62 (0.3) 3.40 (0.2)
Distance [pc] 293.87 (18) 276.59 (23) 293.87 (18)
Composition H
Proper motion (right ascension) [mas/yr] -17.65153763 (0.2) -18.40526316 (0.6) -17.652 (0.2)
Proper motion (declination) [mas/yr] 5.864236097 (0.2) 6.352657133 (0.7) 5.864 (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 19.47 (0.03) 19.47 (0.03) 19.47 (0.04)
g magnitude 19.16 (0.01) 19.16 (0.01) 19.18 (0.02)
r magnitude 19.36 (0.01) 19.36 (0.01) 19.37 (0.02)
i magnitude 19.60 (0.02) 19.60 (0.02) 19.64 (0.03)
z magnitude 19.89 (0.09) 19.89 (0.09) 19.82 (0.1)
G magnitude 19.28 (0.02) 19.31 19.28 (0.004)
BP magnitude 19.30 (0.02) 19.31
RP magnitude 19.37 (0.06) 19.33
Pan g magnitude 19.18 (0.008)
Pan r magnitude 19.39 (0.009)
Pan i magnitude 19.63 (0.02)
Pan z magnitude 19.88 (0.02)
Pan y magnitude 19.85 (0.05)
E(B-V) 0.023

* 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.