Sidereus nuncius di galileo galilei

For the magazine, see The Sidereal Messenger (magazine).

"Starry Messenger" redirects here. For the Peter Sís book, see Starry Messenger (picture book).

Astronomical treatise of Galileo

Sidereus Nuncius (usually Sidereal Messenger, also Starry Messenger or Sidereal Message) is a short astronomical treatise (or pamphlet) published in Neo-Latin by Galileo Galilei on March 13, 1610.^[1] It was the first published scientific work based on observations made through a telescope, and it contains the results of Galileo's early observations of the imperfect and mountainous Moon, of hundreds of stars not visible to the naked eye in the Milky Way and in certain constellations, and of the Medicean Stars (later Galilean moons) that appeared to be circling Jupiter.^[2][3]

The Latin word nuncius was typically used during this time period to denote messenger; however, it was also (though less frequently) rendered as message