Epsilon of the Southern Cross

Epsilon of the Southern Cross (ε Cru, ε Crucis) is a star in the constellation of the Southern Cross . Sometimes called Intrometida (intrusion) in Portuguese . ^[3] Visible magnitude 3.56 (visible to the naked eye). The star is classified as an orange giant, it is 228 light years from Earth.

Epsilon of the Southern Cross
Star
Observational data ( Age J2000.0 )
Right ascension
Declination
Distance	228 St. years old
Visible magnitude ( V )	3.56
Constellation	South Cross
Astrometry
Radial velocity ( R v )	-4.6 km / s
Own movement (μ)	RA: -171.06 mas per year Dec: 91.83 mas per year
Parallax (π)	14.30 ± -0.56 mas
Absolute magnitude (V)	−0.63 ± 0.09 [2]
Specifications
Spectral class	K3III
Color Index ( B - V )	1.42
Color Index ( U - B )	1.63
Variability
physical characteristics
Weight	1.42 ± 0.22 [2] M ☉
Radius	32.9 ± 2.5 [2] R ☉
Age	2.83 ± 1.20 G [2] years
Temperature	4,148 [2] K
Metallicity	−0.10 [2]
Other designations FK5 2989 , HD 107446 , HIP 60260 , HR 4700 , NSV 5568 , SAO 251862 , CD -59 ° 4221
Database Information
SIMBAD

The bright blue star to the right of the center of the image is ε Crucis. The colors used in this image represent specific wavelengths in infrared light. Blue is emitted at 3.4 and 4.6 microns.

The Epsilon of the Southern Cross is represented on the flags of Australia and Papua New Guinea , as one of the five stars in the Southern Cross. Also on the flag of Brazil, it symbolizes the state of Espiritu Santo ^[4] .