Iota2 Fornacis

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]
Distance111 ± 2 ly
(33.9 ± 0.5 pc)
Absolute magnitude (MV)3.08[6]
Details
ι For A
Mass1.42[7] M☉
Radius1.4[8] R☉
Surface gravity (log g)3.47[4] cgs
Temperature6,366[6] K
Metallicity [Fe/H]−0.41[4] dex
Rotational velocity (v sin i)4.7±0.2[6] km/s
Age3.67[9] Gyr
ι For B
Mass0.35[7] M☉
Other designations
ι For, CD−30° 973, HD 16538, HIP 12288, HR 777, SAO 193829[10]
Database references
SIMBADdata

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]

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]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Johnson1999 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Mason2014 was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference AmmlerVonEiff2012 was invoked but never defined (see the help page).
  7. ^ a b c d Cite error: The named reference Tokovinin2014 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference PasinettiFracassini2001 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference Ibukiyama2002 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Keenan1984 was invoked but never defined (see the help page).