Milichius (crater)

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Milichius is a bowl-shaped lunar impact crater that is located in the northern part of the Mare Insularum. To the southeast is the slightly larger Hortensius, a similar formation.

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Milichius
Milichius crater Milichius Pi 4133 h2.jpg
Lunar Orbiter 4 image of Milichius crater (right) and Milichius Pi lunar dome(left)
(horizontal rows of spots are blemishes on original)
Coordinates 10°00′N30°12′W / 10.0°N 30.2°W / 10.0; -30.2
Diameter 13 km
Depth 2.5 km
Colongitude 30° at sunrise
Eponym Jacob Milich

Further away due east of Milichius is the prominent and well-known Copernicus.

Oblique view from Apollo 12 (facing north) Milichius crater Milichius Pi AS12-52-7743.jpg
Oblique view from Apollo 12 (facing north)
Oblique view of Milichius A crater and part of Milichius Rille, also from Apollo 12 Milichius rille and Milichius A crater AS12-52-7744.jpg
Oblique view of Milichius A crater and part of Milichius Rille, also from Apollo 12

The crater is named after 16th century German doctor, mathematician and astronomer Jacob Milich, Latinized as Milichius. [1]

Just to the west is a typical lunar dome designated Milichius Pi (π) that has a tiny craterlet at the peak. The narrow and sinuous Rima Milichius rille is located farther to the southwest, and follows a course running roughly north–south for 100 kilometers.

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 Milichius.

MilichiusLatitudeLongitudeDiameter
A9.3° N32.0° W9 km
C11.2° N29.4° W3 km
D8.0° N28.2° W4 km
E10.7° N28.1° W3 km
K8.5° N30.3° W4 km

References

  1. "Milichius (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.