Gaia DR2 4450425359563998848

All names: SDSS J160935.86+065511.9, WDJ160935.87+065511.81, SDSS J160935.76+065509.9, WDJ160935.87+065511.80, Gaia DR2 4450425359563998848

Parameter Unit MWDD H MWDD HE Pan-STARRS DR1 Gaia DR2 Simbad Gentile Fusillo et al. 2018
Right ascension 16 09 35.85 16 09 35.85 16 09 35.87 (0.1) 16 09 35.85
Declination 06 55 12.56 06 55 12.56 06 55 11.81 (0.07) 06 55 12.56
Spectral type DQ
Effective temperature [K] 8813.0 8549.0
log(g) [cgs] 8.25 8.16
Mass [M☉] 0.7559999999999999 0.68
log(Luminosity) [L☉]
Cooling age [Gyr] 1.2100 1.1870
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 11.58 (0.1) 11.58 (0.1) 11.58 (0.1)
Distance [pc] 86.35 (1) 86.35 (1) 86.35 (1)
Composition
Proper motion (right ascension) [mas/yr] -18.25853603 (0.2) -18.259 (0.2) -18.25853603
Proper motion (declination) [mas/yr] 48.38939855 (0.1) 48.389 (0.1) 48.38939855
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.61 (0.09) 18.58 (0.02)
g magnitude 18.09 (0.07) 18.06 (0.007)
r magnitude 17.94 (0.07) 17.93 (0.007)
i magnitude 17.94 (0.06) 17.92 (0.008)
z magnitude 18.05 (0.04) 18.01 (0.02)
G magnitude 17.91 17.91 (0.001) 17.91
BP magnitude 17.98 17.98
RP magnitude 17.60 17.60
Pan g magnitude 17.74 (0.009)
Pan r magnitude 17.71 (0.003)
Pan i magnitude 17.81 (0.005)
Pan z magnitude 17.93 (0.008)
Pan y magnitude 18.03 (0.01)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.