Tags: Star.
Omega2 Cygni (ω2 Cyg ω2 Cygni) is a star in the constellation Cygnus. It has the traditional name Ruchba.It is a double star about 500 light years from Earth consisting of a magnitude 5.44 star of spectral class M2 and a 6.6 magnitude star of spectral class A0. The stars are 256 apart and can be seen in binoculars. Because of the color contrast (red main star and blue companion) Ruchba is a beautiful object for amateur astronomers.