I made an observation of the large impact crater Petavius (25.3*S, 60.4*E; 110 miles (177 km) diameter) on the lunar terminator (evening or sunset) on February 12, 2009 (06:00 U.T.) using my 9-inch (23-cm) F/13.5 Maksutov-Cassegrain at 359x under average to good seeing conditions (5-7/10). Petavius was mostly in shadow with portions of it's outer rim illuminated by the setting Sun. The central hills of the crater were visible within the shadowed crater. Wrottesley (23.9*S, 56.8*E; ~35 miles (57 lm) diameter) is visible to the West (it's irregular eastern wall and central peak illuminated). The western half of Hase (29.4*S, 62.5*E; ~52 miles (83 km) diameter) is visible south of Petavius. Snellius (29.3*S, 55.7*E; ~52 miles (83 km) diameter) is visible southwest (SW) of Petavius. The elliptical crater northwest (NW) of Petavius is Petavius B (19.9*S, 57.1*E; ~21 miles (33 km) diameter). The complex lunar terrain north of Petavius was interesting.
A digital image produced using Photoshop CS3.