RV Caeli

RV Caeli
Observation data Epoch J2000 Equinox J2000
Constellation	Caelum
Right ascension	04^h 28^m 09.4637^s^[1]
Declination	−41° 57′ 35.396″^[1]
Apparent magnitude (V)	6.425^[1]
Characteristics
Spectral type	M1III^[1]
B−V color index	1.617^[1]
Variable type	semiregular^[2]
Astrometry

Radial velocity (R_v)	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
SIMBAD	data
Data sources:
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.)

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.

References

1 2 3 4 5 6 7 8 9 "RV Caeli". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 30 June 2014.
1 2 VSX (25 August 2009). "RV Cae". AAVSO Website. American Association of Variable Star Observers. Retrieved 30 June 2014.

This article is issued from Wikipedia - version of the 10/30/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.