graben

Rima Ariadaeus – Rille on the Moon that is a Graben

The week of August 21-27 takes us from Day 5 to Day 11. This week we will highlight Rima Ariadaeus on the moon, viewable Tuesday night. Rima Ariadaeus: NE/J11; L=14°E] The best place to see rilles on the Moon is

Petavius: One of the Most Fascinating Craters on the Moon

The week of February 8-14 takes us from Lunar Day 27 to Day 3. New Moon is on Thursday, February 11, so for most of the week, the Moon is not visible. This week we will highlight the crater Petavius.