Cichus (crater)

Cichus

Coordinates 33°18′S 21°06′W / 33.3°S 21.1°W / -33.3; -21.1Coordinates: 33°18′S 21°06′W / 33.3°S 21.1°W / -33.3; -21.1
Diameter 40 km
Depth 2.8 km
Colongitude 21° at sunrise
Eponym Franceso D. S. Cichus

Cichus is a lunar impact crater that lies in the southwestern part of the Moon, at the eastern edge of Palus Epidemiarum. Just to the northeast and nearly contacting the rim is the lava-flooded crater remnant Weiss.

The rim of this crater is only slightly worn, although the crater Cichus C lies across the southwestern rim. Sections of the inner wall are terraced, and the western side is somewhat wider than in the east. Several small ridges lie across the interior floor. A ray from the bright crater Tycho to the southeast passes tangentially just to the northeast of the rim.

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 Cichus.

Cichus Latitude Longitude Diameter
A 34.8° S 21.4° W 21 km
B 33.2° S 19.3° W 14 km
C 33.5° S 21.8° W 11 km
F 35.7° S 22.4° W 8 km
G 35.5° S 23.5° W 23 km
H 32.8° S 22.4° W 7 km
J 32.0° S 21.3° W 13 km
K 36.6° S 19.9° W 6 km
N 30.5° S 21.7° W 8 km

References

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  • Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6. 
  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3. 
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4. 
  • Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3. 
  • Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6. 
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1. 
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