SDSS J164445.79+215436.4

All names: Gaia DR3 4565858786098702848, Gaia DR2 4565858786098702848, Gaia EDR3 4565858786098702848, SDSS J164445.79+215436.4

Parameter	Unit	Gaia EDR3	Pan-STARRS DR1	SDSS DR12	Gaia DR2	Simbad	Eisenstein et al. 2006
Right ascension		16 44 45.79 (0.3)		16 44 45.79	16 44 45.79 (0.4)	16 44 45.79 (0.3)	16 44 45.79
Declination		21 54 36.47 (0.3)		21 54 36.51	21 54 36.48 (0.4)	21 54 36.56 (0.3)	21 54 36.49
Spectral type						sdB	SDB:
Effective temperature	[K]						54902.0 (9449)
log(g)	[cgs]						5.68 (0.5)
Mass	[M_☉]
log(Luminosity)	[L_☉]
Cooling age	[Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)

Parallax	[mas]	-0.52 (0.5)			-0.31 (0.7)
Distance	[pc]
Composition
Proper motion (right ascension)	[mas/yr]	2.3009677 (0.4)			2.50672144 (0.8)	2.301 (0.4)
Proper motion (declination)	[mas/yr]	-5.193417445 (0.5)			-6.685202251 (1)	-5.193 (0.5)
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				19.51 (0.03)		19.50 (0.03)	19.53 (0.04)
g magnitude				19.93 (0.02)		19.93 (0.02)	19.96 (0.03)
r magnitude				20.48 (0.03)		20.47 (0.03)	20.53 (0.03)
i magnitude				20.88 (0.05)		20.88 (0.05)	20.94 (0.05)
z magnitude				21.12 (0.2)		21.12 (0.2)	21.18 (0.2)
G magnitude		20.24 (0.07)			20.30	20.24 (0.005)
BP magnitude		20.14 (0.07)			19.98
RP magnitude		20.65 (0.1)			20.55
Pan g magnitude			20.05 (0.01)
Pan r magnitude			20.45 (0.03)
Pan i magnitude			20.85 (0.03)
Pan z magnitude			20.86 (0.1)
Pan y magnitude
E(B-V)

Spectra