Kappa Crateris

κ Crateris
Location of κ Crateris (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Crater
Right ascension 11h 27m 09.51622s[1]
Declination −12° 21′ 24.2934″[1]
Apparent magnitude (V) 5.94[2]
Characteristics
Spectral type F5/6 III[3]
B−V color index +0.49[2]
Astrometry
Radial velocity (Rv)4.8±0.9[4] km/s
Proper motion (μ) RA: −98.96[1] mas/yr
Dec.: +24.25[1] mas/yr
Parallax (π)14.27 ± 0.41 mas[1]
Distance229 ± 7 ly
(70 ± 2 pc)
Absolute magnitude (MV)+3.08[5]
Details
Mass1.74+0.10
−0.02[6] M☉
Luminosity17[7] L☉
Surface gravity (log g)3.69±0.02[6] cgs
Temperature6,545±63[6] K
Metallicity [Fe/H]+0.15±0.05[6] dex
Rotational velocity (v sin i)38.8[8] km/s
Age1.74+0.25
−0.20[6] Gyr
Other designations
κ Crt, 16 Crateris, BD−11° 3098, FK5 2914, HD 99564, HIP 55874, HR 4416, SAO 156685.[9]
Database references
SIMBADdata

Kappa Crateris (κ Crateris) is the Bayer designation for a star in the southern constellation of Crater. It has an apparent visual magnitude of 5.94,[2] which, according to the Bortle scale, can be seen with the naked eye under dark suburban skies. The distance to this star, as determined from an annual parallax shift of 14.27 mas,[1] is around 229 light years.

This is an evolved F-type giant star[8] with a stellar classification of F5/6 III,[3] where the F5/6 indicates the spectrum lies intermediate between types F5 and F6. It is an estimated 1.74[6] billion years old and is spinning with a projected rotational velocity of 39[8] km/s. Kappa Crateris has 1.74[6] times the mass of the Sun, and radiates 17[7] times the solar luminosity from its outer atmosphere at an effective temperature of 6,545 K.[6]

Kappa Crateris has a visual companion: a magnitude 13.0 star located at an angular separation of 24.6 arc seconds along a position angle of 343°, as of 2000.[10]

  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 Johnson1966 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Houk1999 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Lambert2004 was invoked but never defined (see the help page).
  6. ^ a b c d e f g h Cite error: The named reference Ramirez2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Mcdonald2012 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Schroeder2009 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Mason2014 was invoked but never defined (see the help page).