Nomenclature While Simon Marius is not credited with the sole discovery of the Galilean satellites, his names for the moons were adopted. In his 1614 publication Mundus Iovialis anno M.DC.IX Detectus Ope Perspicilli Belgici , he proposed several possible names for the innermost of the large moons of Jupiter, including The Mercury of Jupiter or The First of the "Jovian Planets".  Based on a suggestion from Johannes Kepler in October 1613, he also generated a naming scheme so that each moon was given its own name based on the lovers of the Greek mythological Zeus or his Roman equivalent, Jupiter . In this case, he named the innermost large moon of Jupiter after the Greek mythological figure Io .   The most common adjectival form of the name is Ionian . Marius' names fell out of favor, and were not revived in common use until the mid-20th century. In much of the earlier astronomical literature, Io is simply referred to by its Roman numeral designation (a system introduced by Galileo) as "
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This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.