EGGR 372

Other names: 1748+708, LHS 455, G 240-72

Parameter	Unit	Holberg et al. 2016	Ferrario et al. 2015	Simbad
Right ascension				17 48 08.17
Declination				70 52 35.29
Spectral type		DQ9.0	DB	DQ9P
Effective temperature	[K]	5570.0	5590.0
log(g)	[cgs]	8.34
Mass	[M_☉]	0.81	0.81
log(Luminosity)	[L_☉]
Cooling age	[Gyr]	5.6000
log(H/He)
log(C/He)
log(Ca/He)

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]	164.70		164.00
Distance	[pc]	6.07		6.10
Composition		He
Proper motion (right ascension)	[mas/yr]			-1262.0
Proper motion (declination)	[mas/yr]			1117.0
Variability
Magnetic			yes
D_b	[MG]		>100
Infrared excess (disk)
Binarity
B magnitude				14.55
V magnitude		14.15		14.15
R magnitude				13.50
I magnitude				13.10
J magnitude				12.71
H magnitude				12.53
K magnitude				12.51
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude

Spectra