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Antonio Abetti (June 19, 1846 – February 20, 1928) was an Italian astronomer.
Born in San Pietro di Gorizia (Šempeter-Vrtojba), he earned a degree in mathematics and engineering at the University of Padua. Later he became director of the Osservatorio Astrofisico di Arcetri and a professor at the University of Florence. He died in Arcetri.
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Work
Abetti mainly worked in positional astronomy and made many observations of minor planets, comets, and star occultations. He refurbished the observatory at Arcetri by installing a new telescope. In 1874 he was part of an expedition led by Pietro Tacchini to observe a transit of Venus with a spectroscope.Honors
- Member of the Accademia dei Lincei.
- Member of the Royal Astronomical Society.
- The crater Abetti on the Moon is named after both Antonio and his son Giorgio Abetti.
- The minor planet 2646 Abetti is also named after Antonio and his son.



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