ABETTI, ANTONIO (1846-1928), Italian astronomer, was born on June 19, 1846, at Gorizia, Italy. He was educated at Pisa. After working in the observatories at Pisa and Padua, Abetti became director of the Arcetri observatory, Florence, in 1894; he remained there until he retired in 1921. He made a special study of the minor planets and wrote a number of papers on this sub ject. Abetti was a member of the Academie dei Lincei; he died on Feb. 20, 1928.
Abetti wrote Construction of a Sundial in a Vertical Plane (1876) ; Differences in Longitude between Rome, Padua and Arcetri (1890, and Annals of Arcetri Observatory (1896-1911).