Giovanni Battista Hodierna
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Giovanni Battista Hodierna, also spelled as Odierna (April 13, 1597 – April 6, 1660) was an Italian astronomer at the court of Giulio Tomasi, Duke of Palma (Palma di Montechiaro). He compiled a catalogue of comets and other celestial objects containing some 40 entries, including at least 19 real and verifiable nebulous objects that might be confused with comets.
In 1654 he published a book entitled De systemate orbis cometici, deque admirandis coeli characteribus that contained a catalogue of celestial objects. The work anticipated Messier's catalogue, but had little impact. Messier seems not to have known of it.
- "Giovanni Battista Hodierna". SEDS. Retrieved 26 February 2013.
- Birthday for a star cluster: Charles Messier, Astronomy Now, January 2011, page 20.
- Fodera-Serio, G.; Indorato, L.; Nastasi, P. (February 1985), "Hodierna's Observations of Nebulae and his Cosmology", Journal for the History of Astronomy, 16 (1): 1, Bibcode:1985JHA....16....1F
- Biography @ SEDS
- Hodierna's Deep sky Observations @ SEDS
- A biography
- Hodierna's (1644) Opuscoli del dottor Don Gio. Battista Hodierna - digital facsimile from the Linda Hall Library
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