The week of May 31 – June 6 takes us from Lunar Day 21 to Day 27. This week we will highlight the Ariadaeus and Hyginus rills. Ariadaeus: [NE/J11; L=17°E] The Ariadaeus Rille (Rima Ariadaeus) is named after this 7-mi.
The week of May 24-30 takes us from Lunar Day 13 to Day 20. This week we will highlight the crater Furnerius A, viewable late Thursday evening. Furnerius A: [SE/N15] On Day 3 we introduced you to Furnerius A and
The week of May 17-23 takes us from Lunar Day 6 to Day 12. This week we will highlight the crater Maurolycus, viewable on Tuesday evening, Day 7. Maurolycus: [SE/P11] Let us venture briefly into a region where angels fear
The week of May 10-16 takes us from Lunar Day 28 to Day 5. This week we will highlight the craters Geminus and Burckhardt, viewable on Friday evening. Geminus: [NE/F15] Roughly 200 miles north of Mare Crisium1, you will find
The week of May 25-31 takes us from Lunar Day 3 to Day 9. This week we will highlight the ghost crater Lamont. Lamont: [NE/J12] About 100 miles (1.5 arc-minutes) off the western shore of Tranquility is a remarkable series
The week of May 18-24 takes us from Lunar Day 26 to Day 2. This is not a good week for lunar observing, as the Moon is so close to the Sun (new moon is on Friday) but this week
The week of May 11-17 takes us from Lunar Day 20 to Day 25. This week we will highlight Rima Hyginus, viewable Wednesday morning, and Mare Vaporum, viewable Wednesday & Thursday mornings. Mare Vaporum: [NE/H10; L=4°E] Notice how there are
The week of May 4-10 takes us from Lunar Day 12 to Day 19. This week we will highlight the Sirsalis Rilles and the crater Galilaie, viewable on Tuesday evening. Rimae Sirsalis: [SW/L3-4] Just in from the southwest shore of
The week of May 20-26 takes us from Lunar Day 17 to Day 22. This week we will highlight the craters Cleomedes and Proclus, viewable after midnight on Monday. Cleomedes: [NE/G15] Cleomedes is the first significant crater just north of
The week of May 13-19 takes us from lunar Day 9 to 16. This week we will highlight Mare Imbrium, viewable throughout the week. Mare Imbrium: [±NW/F8] The Imbrium basin was created 3.9 billion years ago when an asteroid 60