Minor-planet moon
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A minor-planet moon is an astronomical object that orbits a minor planet as its natural satellite. As of May 2026, there are 625 minor planets known or suspected to have moons. Discoveries of minor-pl
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Asteroid 1994 KW4
Jupiter family
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Actaea (moon)
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Actaea, formal designation Salacia I, is the only known moon of the large classical Kuiper belt object 120347 Salacia. It was discovered by Keith S. Noll, Harold F. Levison, Denise C. Stephen and Will
Salacia and its moon Actaea, imaged by the Keck telescope on 3 August 2010. Actaea is the fainter object to the left of Salacia.
The Hubble Space Telescope, the telescope that discovered Actaea back in 2006.