Snellius (crater)

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The crater area (at the bottom right) in selenochromatic format (Si). More infos here : https://www.gawh.it/main/selenocromatica Petavius Si Barbero Zetta Ferruggia.jpg
The crater area (at the bottom right) in selenochromatic format (Si). More infos here : https://www.gawh.it/main/selenocromatica
Snellius
Snellius crater 4053 h1.jpg
Coordinates 29°18′S55°42′E / 29.3°S 55.7°E / -29.3; 55.7
Diameter 83 km
Depth 3.5 km
Colongitude 304° at sunrise
Eponym Willebrord Snell

Snellius is a lunar impact crater located near the southeast limb of the Moon.

The rim of Snellius is heavily worn and eroded, with overlapping craterlets. The floor is somewhat irregular and uneven. The western rim marks the start of the Vallis Snellius, one of the longest valleys on the Moon. It continues nearly 500 kilometers to the northwest to near the edge of Mare Nectaris. Its origin is most likely associated with the formation of the lunar mare.

To the northeast is the large crater Petavius. South of Snellius is the crater Stevinus. Just to the northwest is Snellius A, a crater with a notable ray system that overlaps the southwest reaches of Mare Fecunditatis to the north.

It is named after Dutch astronomer, mathematician and physicist, Willebrord Snellius.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Snellius.

SnelliusLatitudeLongitudeDiameter
A27.4° S53.8° E37 km
B30.1° S53.1° E29 km
C29.0° S51.5° E9 km
D28.7° S51.5° E9 km
E28.0° S51.5° E12 km
X27.4° S55.1° E7 km
Y25.7° S52.2° E10 km

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