RV Caeli

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RV Caeli
Observation data
Epoch J2000      Equinox J2000
Constellation Caelum
Right ascension 04h 28m 09.4637s[1]
Declination −41° 57′ 35.396″[1]
Apparent magnitude (V) 6.425[1]
Spectral type M1III[1]
B−V color index 1.617[1]
Variable type semiregular[2]
Radial velocity (Rv) 97.90[1] km/s
Proper motion (μ) RA: -14.75[1] mas/yr
Dec.: 2.87[1] mas/yr
Parallax (π) 2.74 ± 0.35[1] absmag_v=−1.39 mas
Distance approx. 1,200 ly
(approx. 360 pc)
Other designations
CD-42°1510, HD 28552, HIP 20856, SAO 216821.
Database references

RV Caeli is a semiregular variable star in the constellation Caelum. Located approximately 365 parsecs (1,190 ly) distant, Hipparcos has found it to vary between its photometric values of 6.44 and 6.56,[2] which roughly corresponds with the magnitude as seen with the naked eye.


  1. ^ a b c d e f g h i "RV Caeli". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 30 June 2014. 
  2. ^ a b VSX (25 August 2009). "RV Cae". AAVSO Website. American Association of Variable Star Observers. Retrieved 30 June 2014.