Orazio Grassi

Orazio Grassi (1583–1654) was an Italian mathematician, astronomer and architect.

Canonical pertaining to Society of Jesus, he was one of the authors in controversy with Galileo Galilei on the nature of the comets.

In 1619, his treatise Libra astronomica et philosophica was published under a pseudonym of Lotario Sarsi Sigenzano (an anagram of his name).

Grassi was born in Savona, Italy and died in Rome, Italy.

Persondata
Name	Grassi, Orazio
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Date of birth	1583
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Date of death	1654
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