47 Capricorni

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47 Capricorni
Observation data
Epoch J2000      Equinox J2000
Constellation Capricornus
Right ascension 21h 46m 16.26843s[1]
Declination −09° 16′ 33.3676″[1]
Apparent magnitude (V) 6.00[1]
Spectral type M3III[1]
Variable type SRb[2]
Radial velocity (Rv) 19.80 ± 0.89[1] km/s
Proper motion (μ) RA: 16.63 mas/yr
Dec.: 7.67 mas/yr
Parallax (π) 2.75 ± 0.37 mas
Distance approx. 1,200 ly
(approx. 360 pc)
Other designations
c2 Capricorni (Bayer), 47 Capricorni (Flamsteed), AG Capricorni (var.), BD−09 5833, GSC 05788-01168, HD 207005, HIC 107487, HIP 107487, HR 8318, SAO 145648

47 Capricorni (47 Cap), also known by its variable star designation of AG Capricorni (AG Cap) or its Bayer designation of c2 Capricorni (c2 Cap),[3] is an M-type giant pulsating star in the constellation Capricornus. It is approximately 1200 light years from Earth, and has an apparent magnitude of 6.00.


  1. ^ a b c d e "* 47 Cap". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2014-05-11. 
  2. ^ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S. 
  3. ^ HD 207005, 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.