Iota2 Fornacis

Iota² Fornacis is the Bayer designation for a star in the southern constellation of Fornax. It is faintly visible to the naked eye on a dark night, having an apparent visual magnitude of 5.83.^[2] The distance to this star, based upon an annual parallax shift of 29.46 mas, is around 111 light-years.^[1] It is a member of the thin disk population of the Milky Way galaxy.^[9]

For other stars with this Bayer designation, see ι Fornacis.

Iota² Fornacis

Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Fornax
Right ascension	02h 38m 18.66152s[1]
Declination	−30° 11′ 38.6284″[1]
Apparent magnitude (V)	5.83[2] + 13.74[3]
Characteristics
Spectral type	F6 V Fe-0.7 CH-0.4[4]
B−V color index	+0.48[2]
Astrometry
Radial velocity (Rv)	29.0±2.9[5] km/s
Proper motion (μ)	RA: +97.59[1] mas/yr Dec.: −74.25[1] mas/yr
Parallax (π)	29.46±0.40 mas[1]
Distance	111 ± 2 ly (33.9 ± 0.5 pc)
Absolute magnitude (MV)	3.08[6]
Details
ι For A
Mass	1.42[7] M☉
Radius	1.4[8] R☉
Surface gravity (log g)	3.47[4] cgs
Temperature	6,366[6] K
Metallicity [Fe/H]	−0.41[4] dex
Rotational velocity (v sin i)	4.7±0.2[6] km/s
Age	3.67[9] Gyr
ι For B
Mass	0.35[7] M☉
Other designations
ι For, CD−30°973, HD 16538, HIP 12288, HR 777, SAO 193829[10]
Database references
SIMBAD	data

This is an F-type main-sequence star with a stellar classification of F6 V Fe-0.7 CH-0.4.^[4] The suffix notation indicates that absorption lines of iron and the carbon–hydrogen G-band are abnormally weak.^[11] It has an estimated 1.42^[7] times the mass of the Sun and 1.4^[8] times the Sun's radius. The star is around 3.67 billion years old,^[9] and is spinning with a leisurely projected rotational velocity of 4.7 km/s.^[6]

Iota² Fornacis has a common proper motion companion, a magnitude 13.74 star at a position angle of 81.80 arcseconds along a position angle of 6°.^[3] This object has about 35% of the Sun's mass.^[7]