CSO 745

All names: SDSS J152212.48+542250.7, WD 1520+545, CSO 745, PSO J152212.488+542250.898, Gaia DR2 1599670263137590144, SDSS J152212.48+542250.75

Parameter	Unit	Pan-STARRS DR1	Gaia DR2	Kepler et al. 2016	SDSS DR12	Simbad
Right ascension			15 22 12.49 (0.09)		15 22 12.44	15 22 12.44
Declination			54 22 50.80 (0.1)		54 22 51.25	54 22 51.25
Spectral type				DA		DA
Effective temperature	[K]			20705.0 (123)
log(g)	[cgs]			7.93 (0.02)
Mass	[M_☉]			0.589 (0.009)
log(Luminosity)	[L_☉]
Cooling age	[Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax	[mas]		3.67 (0.1)
Distance	[pc]		272.28 (8)
Composition
Proper motion (right ascension)	[mas/yr]		30.1830396133 (0.2)			32.0
Proper motion (declination)	[mas/yr]		-38.0891757561 (0.2)			-42.0
Variability
Magnetic
B_d	[MG]
Infrared excess (disk)
Binarity
B magnitude						17.00
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude				17.60 (0.01)	17.60 (0.01)	17.60
g magnitude				17.57 (0.02)	17.55 (0.005)	17.57
r magnitude				17.98 (0.01)	17.97 (0.006)	17.97
i magnitude				18.29 (0.01)	18.28 (0.01)	18.29
z magnitude				18.55 (0.04)	18.55 (0.04)	18.55
G magnitude			17.82
BP magnitude			17.66
RP magnitude			17.96
Pan g magnitude		17.65 (0.004)
Pan r magnitude		17.97 (0.004)
Pan i magnitude		18.28 (0.003)
Pan z magnitude		18.55 (0.007)
Pan y magnitude		18.71 (0.03)

Spectra