Omega2 Cygni
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Omega-2 Cygni (ω2 Cyg / ω2 Cygni) is a star in the constellation Cygnus. It also 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.
Coordinates for epoch J2000:
- Right ascension: 20h31m18.80s
- Declination: +49°13'13.0"
