The Comet of 1729 was discovered in the constellation of Equuleus by Father Nicolas Sarabat, a professor of mathematics, at Nīmes in the early morning of August 1, 1729. Source
The Comet of 1729, also known as C/1729 P1 or Comet Sarabat, was a non-periodic comet with an absolute magnitude of -3, the brightest ever observed for a comet; it is therefore considered to be potentially the largest comet ever seen. Read more
Title: Sarrabat and the comet of 1729 Authors: Lynn, W. T.
This comet was discovered at Nismes by Father Sarrabat, Professor of Mathematics at Marseilles, on the 31st of July. Soon afterwards he ceased to be able to see it on account of the increasing moonlight; but succeeded in observing it during the eclipse of the Moon on the 8th of August. Cassini did not receive intelligence of the discovery until the 26th of that month. When he saw it he was surprised at the place being so near ttiat reported at the time of discovery nearly a month before, and, till he had followed its motion himself, doubted whether it were really a comet. It was barely visible to the naked eye; but he succeeded in continuing his observations until the 18th of January, 1730.