36 Ophiuci

36 Ophiuchi is a triple star system 19.5 light years away from Earth. It is in the constellation Ophiuchus.

The primary and secondary stars are nearly identical orange main sequence dwarves of spectral type K0/K1 and the tertiary star is an orange main sequence dwarf of spectral type K5.
Star C is separated from the A-B pair by 700 arc seconds, compared to a minimum of 4.6 arcsec for A-B, so it has a negligible effect on the movements of the A-B pair. Both A and B have active chromospheres.

In Space Opera

  • Dune (1965) and other novels in the Dune universe by Frank Herbert. 36 Ophiuchi B is orbited by the planet Giedi Prime, the homeworld of House Harkonnen.
  • Frontier: Elite II? (1993) and Frontier: First Encounters? (1995), computer games written by David Braben? et al. 36 Ophiuchi is a mining system whose population of mineworkers is concentrated on an earthlike moon in orbit around a gas giant.

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