WD 1551+175

Other names: KUV 15519+1730, SDSS J155409.03+172124.1

Parameter	Unit	Bergeron et al. 2011	SDSS DR12	Simbad	Kleinman et al. 2013
Right ascension			15 54 09.03	15 54 09.03	15 54 09.03
Declination			17 21 24.08	17 21 24.08	17 21 24.08
Spectral type		DBAZ		DBAZ	DB_DBZA
Effective temperature	[K]	15550.0			16164.0
log(g)	[cgs]	7.96			8.24
Mass	[M_☉]	0.57
log(Luminosity)	[L_☉]	-2.04
Cooling age	[Gyr]	0.1738
log(H/He)		-4.38
log(C/He)
log(Ca/He)		-6.5

log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax	[mas]
Distance	[pc]	188.00
Composition		He
Proper motion (right ascension)	[mas/yr]
Proper motion (declination)	[mas/yr]
Variability
Magnetic
D_b	[MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude		17.50		17.50
R magnitude
I magnitude
J magnitude				17.52
H magnitude				17.64
K magnitude				17.56
u magnitude			17.06	17.08	17.08
g magnitude			17.13	17.15	17.15
r magnitude			17.43	17.43	17.43
i magnitude			17.66	17.67	17.67
z magnitude			17.91	17.93	17.93

Spectra