Assertion: castor oil's component | /r/HasProperty | separated by 15 light years
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Source sentences:
text: All three visual components of the Castor system are in fact close spectroscopic binaries, with Castor A and B separated by an average of 104 AU, or 15 light years, and orbiting each other every 445 years, while Castor C is separated from the principal Castor AB pair by a distance of about 1000 AU, and orbits them over a 14,000 year period.