EGGR 321

Other names: 0728+642, G234-004, G 234-4

Parameter	Unit	Holberg et al. 2016	Ferrario et al. 2015	Simbad
Right ascension				07 33 30.88
Declination				64 09 27.68
Spectral type		DA11.1	DA	DA11P
Effective temperature	[K]	5135.0	4500.0
log(g)	[cgs]	8.00
Mass	[M_☉]	0.58
log(Luminosity)	[L_☉]
Cooling age	[Gyr]	4.9900
log(H/He)
log(C/He)
log(Ca/He)

log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Ca/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax	[mas]
Distance	[pc]	18.39
Composition		H
Proper motion (right ascension)	[mas/yr]			40.0
Proper motion (declination)	[mas/yr]			-263.0
Variability
Magnetic		yes	yes
D_b	[MG]	0.3	0.125 *
Infrared excess (disk)
Binarity
B magnitude				16.40
V magnitude		16.38		16.38
R magnitude				15.60
I magnitude				14.70
J magnitude				14.81
H magnitude				14.52
K magnitude				14.38
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude

Spectra