SDSS J031502.87+054647.4

All names: Gaia DR2 4121248754116096, SDSS J031502.87+054647.4, SDSS J031502.87+054647.40

Parameter	Unit	Pan-STARRS DR1	SDSS DR12	Genest-Beaulieu & Bergeron 2019 (spectroscopic)	Gaia DR2	Simbad	Kleinman et al. 2013
Right ascension			03 15 02.87		03 15 02.87 (3)	03 15 02.87 (3)	03 15 02.87
Declination			05 46 47.36		05 46 47.42 (2)	05 46 47.42 (2)	05 46 47.43
Spectral type						DB	DB
Effective temperature	[K]			15247.0			16242.0 (843)
log(g)	[cgs]			8.14			8.70 (0.5)
Mass	[M_☉]			0.673			1.029 (0.2)
log(Luminosity)	[L_☉]
Cooling age	[Gyr]
log(H/He)				<-5.849
log(C/He)
log(Ca/He)
log(Ca/H)

Parallax	[mas]
Distance	[pc]
Composition
Proper motion (right ascension)	[mas/yr]
Proper motion (declination)	[mas/yr]
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			21.43 (0.1)			21.37 (0.1)	21.37 (0.1)
g magnitude			21.11 (0.03)			21.10 (0.04)	21.10 (0.04)
r magnitude			21.31 (0.06)			21.30 (0.05)	21.30 (0.05)
i magnitude			21.30 (0.08)			21.31 (0.07)	21.31 (0.07)
z magnitude			21.46 (0.3)			21.35 (0.3)	21.35 (0.3)
G magnitude					21.26	21.26 (0.05)
BP magnitude
RP magnitude
Pan g magnitude		21.16 (0.03)
Pan r magnitude		21.15 (0.04)
Pan i magnitude		21.21 (0.03)
Pan z magnitude		21.25 (0.1)
Pan y magnitude
E(B-V)

Spectra