55 Cancri Guide, Meaning , Facts, Information and Description

55 Cancri is a G type star 41 light-years or 12.57 parsecs away in the constellation Cancer.

Four extrasolar planets have been discovered around 55 Cancri, making it the largest known extrasolar planetary system as of August 2004. Its planets orbit with periods of 3, 15, 44 and 4,520 days. The smallest planet, which orbits the star in just under three days, is about the same size as Neptune, making it one of the smallest extrasolar planets ever discovered. This is the first and only known four planet planetary system.

55 Cancri is visible through binoculars.

See also

• PSR 1257+12 - the smallest planets to date (2004)
• Extrasolar planet
• List of stars with confirmed extrasolar planets
• List of stars with multiple exoplanets
• Planetary system

External links and references

• 55 Cancri from The Planet Project at the University of Illinois
• Astronomers searching for distant Earths find two Neptunes

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