Helicon (crater)

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Helicon (crater)
Helicon crater 4139 h2.jpg
Coordinates 40°24′N 23°06′W / 40.4°N 23.1°W / 40.4; -23.1Coordinates: 40°24′N 23°06′W / 40.4°N 23.1°W / 40.4; -23.1
Diameter 25 km
Depth 0.5 km
Colongitude 23° at sunrise
Eponym Helicon

Helicon is a small lunar impact crater that is located on the north part of the Mare Imbrium. To the northwest is the prominent Sinus Iridum, a mountain-ringed bay on the mare. Just to the east is the slightly smaller crater Le Verrier. Helicon is a nearly circular formation with inner walls that curve down to a relatively flat floor. There is a tiny craterlet located at the midpoint of the interior, and a small craterlet along the southwestern rim.

Satellite craters[edit]

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

Helicon Latitude Longitude Diameter
B 38.0° N 21.3° W 6 km
C 40.1° N 26.2° W 1 km
E 40.5° N 24.1° W 3 km
G 41.7° N 24.9° W 2 km