RT Normae

RT Normae

A visual band light curve for RT Normae, plotted from ASAS[1] and ASAS-SN[2] data
Observation data
Epoch J2000.0 ICRS      Equinox J2000.0 ICRS
Constellation Norma
Right ascension 16h 24m 18.65396s[3]
Declination −59° 20′ 38.6476″ [3]
Apparent magnitude (V) 9.8-14.7 [4]
Characteristics
Spectral type C (R)[4]
Variable type R CrB variable
Astrometry
Parallax (π)27.29 ± 17.10 mas[3]
Distanceapprox. 120 ly
(approx. 40 pc)
Details
Mass<0.55[5] M☉
Temperature7000 K[5] K
Other designations
HIP 80365, CPD-59 6719
Database references
SIMBADdata

RT Normae is an R Coronae Borealis type variable star in the constellation Norma. It has a baseline magnitude of 9.8, dropping down to 14.7 at its minima.[4]

It has less than 55% the mass of the Sun and an effective (surface) temperature of around 7000 K.[5]

  1. ^ Cite error: The named reference ASASServer was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference ASAS-SN was invoked but never defined (see the help page).
  3. ^ a b c van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
  4. ^ a b c Otero, Sebastian Alberto (12 July 2011). "V RT Nor". The International Variable Star Index. Retrieved 20 May 2015.
  5. ^ a b c Stasińska, G.; Szczerba, R.; Schmidt, M.; Siódmiak, N. (2006). "Post-AGB stars as testbeds of nucleosynthesis in AGB stars". Astronomy and Astrophysics. 450 (2): 701. arXiv:astro-ph/0601504. Bibcode:2006A&A...450..701S. doi:10.1051/0004-6361:20053553. S2CID 12040452.