Possible Planetary System
The system was the subject of a dedicated search for transiting extrasolar planets in orbit around the binary from 1994–1999. In the end, the existence of all of the transiting planet candidates suggested by the project was ruled out.
Based on variations in the timing of the system's eclipses, it has been suggested that there may be an object in a circumbinary orbit around the two red dwarf stars. In 2000, it was proposed that a Jovian planet is orbiting the system with a period of 750–1050 days. More recent eclipse measurements suggest there may be a planet with a mass similar to Jupiter in an 18.5-year orbit, or instead a more massive object located further out. The variations are inconsistent with being caused by the white dwarf companion star. No further evidence for the 750–1050 day planet was found and it is considered unlikely that it exists.
Read more about this topic: CM Draconis
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