The week of March 16-22 takes us from Lunar Day 23 to Day 28. This week we will highlight the Hippalus rilles, viewable around 5:00 a.m. on Wednesday morning. Rimae Hippalus: [SW/M6] On the east shore of Mare Humorum you
The week of January 27-February 2 takes us from Day 3 to Day 8. This week we will highlight the craters Posidonius and le Monnier, viewable on Thursday evening. Posidonius/le Monnier: [NE/F-G13] There are only two craters of any consequence
The week of January 20-26 takes us from Day 25 to Day 2. Unfortunately the Moon is too close to the Sun all week long to observe it, although you might be able to squeeze in something early Tuesday morning.
The week of December 30 – January 5 takes us from Day 4 to Day 10. This week we will highlight Rima Hyginus (the Hyginus Rille), viewable on Thursday evening, and the Quadrantid meteor shower. Rima Hyginus: [NE/J10;] At the
I hope everybody caught the transit of Mercury across the face of the Sun on Monday morning! The week of November 11-17 takes us from Day 14 (virtually the Full Moon) to Day 20. This week we will highlight the
The week of November 4-10 takes us from the end of Day 7 to Day 13. This week we will highlight the Triesnecker rilles, viewable on Monday evening. Triesnecker rilles: [NE/J10] What a great place to poke around with your
The week of October 14-20 takes us from Day 15 to 21. This week we will highlight a feature commonly referred to as The Great Eastern Chain, viewable on Monday evening. The Great Eastern Chain: [SE/K-N16] There is a conspicuous
The week of July 22-28 takes us from Day 20 to Day 26. This week we will highlight Rima Hyginus viewable early Tuesday morning. Rima Hyginus: [NE/J10] At the west end of the Ariadaeus rille, there is a narrow diagonal
The week of June 3-9 takes us from New Moon to Lunar Day 7. This week we will highlight Rima Ariadaeus (the Ariadaeus Rille) viewable on Sunday evening, Lunar Day 7. Rima Ariadaeus: [NE/J11] The best place to see rilles
The week of May 6-12 takes us from lunar Day 2 to Day 8. This week we will highlight the charmingly named Lacus Mortis (the Lake of Death) and Bürg, two craters viewable on Thursday evening, and the crater Maurolycus,