LBQS 1217+1006

All names: PSO J121939.347+094956.440, Gaia DR2 2358739727648116608

Parameter	Unit	MWDD HE	Pan-STARRS DR1	Gaia DR2	Koester & Kepler (2015)
Right ascension				12 19 39.33 (0.2)
Declination				09 49 56.38 (0.1)
Spectral type		DB
Effective temperature	[K]	20194.0			31357.0 (234)
log(g)	[cgs]	7.94			7.81 (0.03)
Mass	[M_☉]	0.5670000000000001
log(Luminosity)	[L_☉]
Cooling age	[Gyr]	0.0578
log(H/He)					-2.96 (0)
log(C/He)
log(Ca/He)					-4.0 (0)
log(Ca/H)

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]			2.92 (0.2)
Distance	[pc]			342.09 (27)	484.00
Composition		He
Proper motion (right ascension)	[mas/yr]			-15.885 (0.5)
Proper motion (declination)	[mas/yr]			-12.931 (0.3)
Variability
Magnetic
B_d	[MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude				18.28
BP magnitude				18.08
RP magnitude				18.38
Pan g magnitude			18.09 (0.006)
Pan r magnitude			18.41 (0.007)
Pan i magnitude			18.74 (0.01)
Pan z magnitude			19.00 (0.02)
Pan y magnitude			19.08 (0.02)

Spectra