TU Corvi

TU Corvi is a yellow-white hued star in the southern constellation of Corvus. It is a dimly visible to the naked eye with an apparent visual magnitude of 6.20.^[3] The distance to this star can be estimated from its annual parallax shift of 13.3 mas, yielding a range of about 246 light years. Based upon measured changes in its proper motion, it may be a close binary system.^[12]

TU Corvi

A light curve for TU Corvi, plotted from TESS data[1]
Observation data Epoch J2000      Equinox J2000
Constellation	Corvus
Right ascension	12h 35m 58.79603s[2]
Declination	−20° 31′ 38.9160″[2]
Apparent magnitude (V)	6.20[3]
Characteristics
Spectral type	F0 V[4]
B−V color index	0.34±0.01[3]
Variable type	δ Sct[5][6]
Astrometry
Radial velocity (Rv)	−2.0±4.3[7] km/s
Proper motion (μ)	RA: +30.202[2] mas/yr Dec.: −51.280[2] mas/yr
Parallax (π)	13.2558±0.3343 mas[2]
Distance	246 ± 6 ly (75 ± 2 pc)
Absolute magnitude (MV)	2.08[3]
Details
Mass	1.45[8] M☉
Radius	2.7[2] R☉
Luminosity	12.6+1.2 −1.1[8] L☉
Surface gravity (log g)	3.93±0.14[8] cgs
Temperature	7,132±242[8] K
Metallicity [Fe/H]	−0.07±0.07[9] dex
Rotational velocity (v sin i)	103[10] km/s
Age	786[8] Myr
Other designations
TU Crv, AAVSO 1230-19, BD−19°3521, HD 109585, HIP 61496, HR 4797, SAO 180937[11]
Database references
SIMBAD	data

This is an F-type main-sequence star with a stellar classification of F0 V.^[4] Previously it had been classed as F0 III,^[13] matching an evolved giant star. It is a Delta Scuti variable, varying by an amplitude of 0.025 in B magnitude with a period of 118 minutes.^[5][6] At the age of 786^[8] million years, it has a high rate of spin with a projected rotational velocity of 103 km/s.^[10] The star has 1.45 times the mass of the Sun and is radiating 12.6 times the Sun's luminosity from its photosphere at an effective temperature of 7,132 K.^[8]