Kappa Reticuli

Kappa Reticuli
Location of κ Reticuli (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Reticulum
Right ascension 03h 29m 22.67724s[1]
Declination −62° 56′ 15.0991″[1]
Apparent magnitude (V) +4.71[2] + 10.7[3]
Characteristics
Spectral type F3 V[4] or F3 IV/V[5] + M1[6]
U−B color index −0.04[2]
B−V color index +0.39[2]
Astrometry
Radial velocity (Rv)+12.5±0.4[7] km/s
Proper motion (μ) RA: +382.84[1] mas/yr
Dec.: +373.05[1] mas/yr
Parallax (π)46.12 ± 0.13 mas[1]
Distance70.7 ± 0.2 ly
(21.68 ± 0.06 pc)
Absolute magnitude (MV)+2.98[8]
Details
κ Ret A
Mass1.32[9] M☉
Radius1.1[10] R☉
Surface gravity (log g)4.31[9] cgs
Temperature6,796±231[9] K
Metallicity [Fe/H]−0.07[11] dex
Rotational velocity (v sin i)13.5±0.7[12] km/s
Age848[9] Myr
κ Ret B
Mass0.54[6] M☉
Radius0.50[6] R☉
Luminosity0.043[6] L☉
Temperature3,733[6] K
Other designations
κ Ret, 4 Ret, CD−63° 112, FK5 126, HD 22001, HIP 16245, HR 1083, SAO 248819, WDS J03294-6256A[13]
Database references
SIMBADdata

Kappa Reticuli (κ Reticuli) is a binary star[3] system in the southern constellation of Reticulum. It is visible to the naked eye, having a combined apparent visual magnitude of +4.71.[2] Based upon an annual parallax shift of 46.12 mas as seen from Earth,[1] it is located 71 light-years from the Sun. Based upon its space velocity components, this star is a member of the Hyades supercluster of stars that share a common motion through space.[14]

Houk and Cowley (1978) catalogued the yellow-hued[15] primary, component A, with a stellar classification of F3 IV/V,[5] indicating this is an F-type star that showing mixed traits of a main-sequence and a more evolved subgiant star. Later, Grey et al. (2006) listed a class of F3 V,[4] suggesting it is an F-type main-sequence star. It is emitting a statistically significant amount of infrared excess, suggesting the presence of an orbiting debris disk.[16] The secondary, component B, is an orange-hued[15] star with a visual magnitude of 10.4 at an angular separation of 54 arcseconds from the primary.[3]

  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 d Cite error: The named reference Johnson1966 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference gaidos was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Reiners2006 was invoked but never defined (see the help page).
  9. ^ a b c d Cite error: The named reference David2015 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference PasinettiFracassini2001 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Casagrande2011 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference AmmlerVonEiff2012 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Montes2001 was invoked but never defined (see the help page).
  15. ^ a b Cite error: The named reference Streicher2009 was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference Andras2013 was invoked but never defined (see the help page).