Alpha Crucis, Beta Crucis, Delta Crucis, Gamma Crucis, and Epsilon Crucis,
Actually, it is five: Alpha Crucis, Beta Crucis, Gamma Crucis, Delta Crucis, and Epsilon Crucis.
Your question is problematic because Beta Crucis is a spectroscopic binary with components that are too close together to resolve with a telescope. In other words it is not 1 star but 2 (and perhaps 3). Beta Crucis A is a known Beta Cephei variable, a massive star with about 16 times the Sun's mass. (this is leaving the main sequence). The secondary major companion in this system may be a main sequence star with a stellar class of B2. There may also be a third companion, which may be a low mass, pre-main sequence star. Thus, as you can see it is difficult to give you a precise age for this stellar system.
The main stars of theSouthern Cross (or Crux) are:-Acrux Alpha Crucis at ~ 320 LyMimosa or Becrux Beta Crucis ~ 350 lyDelta Crucis ~ 360 lyGamma Crucis or Gacrux ~ 80 lyEpsilon Crucis ~ 380 lySee link for more information
The four major stars in the constellation Crux (Latin for 'cross'), or the Southern Cross, are Alpha Crucis (Acrux), Beta Crucis (also known as Mimosa or Becrux), Gamma Crucis(Gacrux) and Delta Crucis (Decrux). Some also include Epsilon Crux (Juxta Crucem) on the list although it is not actually part of the Cross itself.
Beta Lyrae
Crux - the Southern Cross. The Bethlehem Star could have been Alpha Crucis (Acrux).
The brightest star in Aquarius is Beta Aquarii with an apparent magnitude of 2.91. Its common name is Sadalsuud.
It is a constellation of four main stars visible in the skies of the Southern Hemisphere. It is roughly in the shape of an upside down cross made up of the stars Alpha Crucis Beta Crucis Delta Crucis Gamma Crucis. Two stars - Alpha and Bete Centauri - are called the pointers and do just that...point to the cross' position in the sky. All are very beautiful. The constellation rotates around the South Celestial Pole during the year.It is the name of a constellation. It is in the southern sky and can't be seen from people that live relatively far north (for example, in the United States or Europe), since it is always below the horizon. Its four brightest stars have the shape of a kite or cross.
The Centaurus is the third largest star in the Southern Cross. The other two stars in the Southern Cross are named Alpha and Beta Centaurus.
The Southern Cross or Crux is a constellation that is made up of 5 stars. The distances of these stars varies, with the closest being 89 lightyears from our solar system. The distances of each of the stars (in light years (ly) is detailed below. Alpha Crucis = 320ly Beta Crucis (also known as Mimosa or Becrux) = 280ly Delta Crucis = 345ly Gamma Crucis (Gacrux) = 89ly, this is the closest Red Giant to our solar system Epsilon Crucis = 228ly
beta herculis isa distance of 139 light-years fromEarth