What is "sinas"

thumb|left|240px|Oblique view at low sun angle from Apollo 11 thumb|right|240px|Oblique view at low sun angle from Apollo 8, and one of the lunar domes is at right Sinas is a small lunar impact crater that lies in the eastern part of the Moon on the Mare Tranquillitatis, named after the Greek magnate Simon Sinas. This is an isolated formation that is located very near the midpoint of the lunar mare. Sinas is circular and bowl-shaped, with a small floor at the midpoint. A wrinkle ridge intersects the east edge of the crater, and several lunar domes lie to the north.

Nearby craters include Jansen and Carrel to the northwest, Aryabhata to the southeast, and Maskelyne to the south.

Sinas may refer to:

• Sinas (crater), crater on the Moon
• Georgios Sinas (1783–1856), Greek benefactor and diplomat
• Simon Sinas (1810-1876), Georgios' son, Greek benefactor and diplomat, after whom the Sinas crater is named