• Don SpainEmail author
Part of the Astronomer's Pocket Field Guide book series (ASTROPOC)


Heraclitus (55 miles) is fairly well worn down with some parts of its rim reaching upwards to over 1½ miles. Its north rim is completely destroyed by Licetus and its southwestern rim is similar damaged by a 31 mile crater. Instead of a central peak, there is a central crest running northeast from the rim of intruding southern crater almost to the rim of Licetus. I would estimate its height at less than ½ mile. The floor is rough and my 6 inch refractor reveals several small craters on the eastern side of the central crest. Find this one 6 days after new Moon.

Licetus (45 miles) is a great circular crater, over 2 miles deep. There are two sizable craters that have destroyed part of its southern rim. The floor contains many small craters and a small central hill.


Eastern Side Central Peak Small Crater Central Mountain Sizable Crater 
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© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Louisville Astronomical SocietyLouisvilleUSA

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