What treatise published Galileo's findings regarding the objects orbiting Jupiter?

Answer

Sidereus Nuncius

Galileo formally presented his monumental findings about the celestial bodies orbiting Jupiter in his published treatise titled Sidereus Nuncius, which translates to Starry Messenger. This publication served as the official announcement and documentation of his telescopic observations, allowing the wider scientific community to review his data and conclusions shortly after he made them. While he used the dedication name Stelle Medicee for political reasons related to patronage, the treatise itself was the academic vehicle for disseminating the astronomical data.

What treatise published Galileo's findings regarding the objects orbiting Jupiter?
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