SDSS J080438.02+453239.0

All names: SDSS J080438.03+453238.8, SDSS J080438.02+453239.0, PSO J080438.022+453238.788, Gaia DR2 929315680292689024

Parameter	Unit	Pan-STARRS DR1	Gaia DR2	SDSS DR12	Simbad	Eisenstein et al. 2006
Right ascension			08 04 38.03 (0.3)	08 04 38.03	08 04 38.03	08 04 38.03
Declination			45 32 38.77 (0.2)	45 32 38.90	45 32 39.01	45 32 39.01
Spectral type					sdB	SDB
Effective temperature	[K]					31304.0 (642)
log(g)	[cgs]					5.04 (0.06)
Mass	[M_☉]
log(Luminosity)	[L_☉]
Cooling age	[Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax	[mas]		-0.12 (0.3)
Distance	[pc]		-8257.65 (20912)
Composition
Proper motion (right ascension)	[mas/yr]		1.2441488163 (0.5)		-1.0	0.3
Proper motion (declination)	[mas/yr]		-7.6851641954 (0.4)		-7.0	-6.5
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				18.65 (0.02)	18.63	18.67 (0.03)
g magnitude				18.85 (0.009)	18.85	18.86 (0.02)
r magnitude				19.18 (0.01)	19.19	19.22 (0.02)
i magnitude				19.36 (0.02)	19.36	19.38 (0.02)
z magnitude				19.53 (0.07)	19.52	19.55 (0.07)
G magnitude			19.04
BP magnitude			18.90
RP magnitude			18.96
Pan g magnitude		18.95 (0.007)
Pan r magnitude		19.20 (0.01)
Pan i magnitude		19.40 (0.009)
Pan z magnitude		19.51 (0.02)
Pan y magnitude		19.47 (0.08)

Spectra