R Trianguli Australis

R Trianguli Australis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Triangulum Australe
Right ascension 15h 19m 45.71327s [1]
Declination −66° 29 45.7293 [1]
Apparent magnitude (V) 6.33 - 6.90[2]
Spectral typeF5Ib/II-G5[2]

R Trianguli Australis is a star in the constellation Triangulum Australe. A Cepheid variable, its apparent magnitude ranges from 6.33 to 6.90 over 3.38926 days.[2] It is a yellow-white supergiant that pulsates between spectral types F5Ib/II-G5.[2] Its radius is 29.7 times that of the Sun.[3]

References

  1. 1 2 "R Trianguli Australis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 23 May 2015.
  2. 1 2 3 4 Watson, Christopher (4 January 2010). "R Trianguli Australis". AAVSO Website. American Association of Variable Star Observers. Retrieved 23 May 2015.
  3. Moskalik, P.; Gorynya, N. A. (2005). "Mean Angular Diameters and Angular Diameter Amplitudes of Bright Cepheids". Acta Astronomica 55: 247. arXiv:astro-ph/0507076. Bibcode:2005AcA....55..247M.


This article is issued from Wikipedia - version of the Tuesday, April 26, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.