RT Trianguli Australis

RT Trianguli Australis

A light curve for RT Trianguli Australis, plotted from TESS data
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Triangulum Australe
Right ascension 16h 34m 30.89188s
Declination −63° 08 00.8395
Apparent magnitude (V) 9.43 - 10.18
Characteristics
Spectral type F8:(R)-G2I-II
Variable type BL Her
Astrometry
Proper motion (μ) RA: -4.00 ± 1.48 mas/yr
Dec.: -14.25 ± 1.43 mas/yr
Parallax (π)1.26±1.50 mas
Details
Mass0.48 M
Radius9.4 R
Metallicity [Fe/H]+0.4 dex
Minimum
Luminosity138 L
Temperature5,200 K
Maximum
Luminosity200 L
Temperature6,500 K
Other designations
RT TrA, CPD−62° 5377, HIP 81157, 2MASS J16343089-6308009, AAVSO 1625-62
Database references
SIMBADdata

RT Trianguli Australis, or RT TrA, is a BL Herculis variable (type II Cepheid) in the constellation of Triangulum Australe.