Antonio Abetti (June 19, 1846 - February 20, 1928) was an Italian astronomer. 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. Read more