Lat: 58.7°S, Long: 66.0°E, Diam: 91 km, Depth: 5.6 km, Rükl 76, Nectarian
(IAU Directions) PONTECOULANT.--A great irregular walled plain, about 100 miles in length, near the S.E. limb, with a border rising in places to a height of 6,000 feet above the floor.
- Depth data from Kurt Fisher database
- Westfall, 2000: 5.6 km
- Satellite crater Pontécoulant J is radar bright at 70 cm.
Philippe Gustave Doulcet, Comte De Pontécoulant (1795-1874) was a French mathematician and astronomer. In 1829 he used the mathematical methods of Poisson and Lagrange to successfully predicted the return of Halley's comet with good precision. His prediction of the perihelion passage was correct to within two days.