RT Normae

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]

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]
Distance	approx. 120 ly (approx. 40 pc)
Details
Mass	<0.55[5] M☉
Temperature	7000[5] K
Other designations
HIP 80365, CPD-59 6719
Database references
SIMBAD	data

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