Reference Work Entry

Biographical Encyclopedia of Astronomers

pp 1261-1261

Date:

Lacchini, Giovanni Battista

  • Thomas HockeyAffiliated withDepartment of Earth Science, University of Northern IowaDepartment of Earth Science, University of Northern Iowa Email author 

BornFaenza (Emilia-Romagna), Italy, 20 May 1884

DiedItaly, 6 January 1967

Originally an Italian postal worker, Giovanni Lacchini became a professional astronomer when a special position was legislated just for him. Lacchini’s status was due to his enthusiasm for variable stars: He made observations of variables (53,000+) from locations all over Italy – even from moving trains between stations! Lacchini’s skill was such that he could estimate the brightness of a star visually to a tenth of a magnitude, using only one comparison star. He was the first international member of the American Association of Variable Star Observers [AAVSO] and was elected vice president of that organization.

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