47 Capricorni

47 Capricorni

Observation data Epoch J2000      Equinox J2000
Constellation	Capricornus
Right ascension	21^h 46^m 16.26843^s[1]
Declination	−09° 16′ 33.3676″[1]
Apparent magnitude (V)	6.00[1]
Characteristics
Spectral type	M3III[1]
Variable type	SRb[2]
Astrometry
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
c^2 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.

References

1. "* 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.