46 Capricorni

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46 Capricorni
Observation data
Epoch J2000      Equinox J2000
Constellation Capricornus
Right ascension 21h 45m 00.25445s[1]
Declination −09° 04′ 56.7386″[1]
Apparent magnitude (V) 5.086[1]
Spectral type G7.5II-III[2]
Radial velocity (Rv) −4.80 ± 0.6[1] km/s
Proper motion (μ) RA: 12.80 mas/yr
Dec.: −1.31 mas/yr
Parallax (π) 4.12 ± 0.31 mas
Distance 790 ± 60 ly
(240 ± 20 pc)
Other designations
c Capricorni, c1 Capricorni,[3] 46 Capricorni, BD−09° 5829, GC 30448, GSC 05788-01167, HD 206834, HIP 107382, HR 8311, PPM 205561, SAO 145637
Database references

46 Capricorni (46 Cap) is a star in the constellation Capricornus. It is a yellow G-type supergiant[1] or bright giant[citation needed] with an apparent magnitude of +5.086, and is approximately 790 light years from Earth.

46 Cap is also known by its Bayer designation of c Capricorni (c Cap), and occasionally as c1 Capricorni to distinguish it from c2 Capricorni.[3]


This star, along with β Aqr (Sadalsuud) and ξ Aqr (Bunda), were Saʽd al Suʽud (سعد السعود), the Luck of Lucks.[4][5]


  1. ^ a b c d e "c Cap". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2014-05-12. 
  2. ^ Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series. 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373. 
  3. ^ a b HD 206834, HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index, N. D. Kostjuk, Institute of Astronomy of Russian Academy of Sciences, 2002; CDS ID IV/27A.
  4. ^ Allen, R. H. (1963). Star Names: Their Lore and Meaning (Reprint ed.). New York: Dover Publications Inc. p. 52. ISBN 0-486-21079-0. Retrieved 2010-12-12. 
  5. ^ β Aqr as Nir Saad al Saaoud or Lucida Fortunæ Fortunarum (the brightest of luck of lucks) and ξ Aqr as Thanih Saad al Saaoud or Secunda Fortunæ Fortunarum (the second of luck of lucks). c Cap should be Thalath Fortunæ Fortunarum or Tertia Fortunæ Fortunarum (the third of luck of lucks) consistently, but Al Achsasi Al Mouakket was not designated the title for this star with uncleared consideration. Possibly according to the differences of opinion with R.H.Allen