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
Crater Rima Hyginus: Pivot Point is a Curiosity
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 Best Place to see Rilles on the Moon
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
Two Moon Craters with Unique Features: Lacus Mortis and Bürg
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,
Two of the Best-Known Faults on the Moon
The week of April 22-28 takes us from Day 18 to Day 24. This week we will highlight Rupes Cauchy, viewable early Tuesday morning. Rupes Cauchy1: [NE/J13; L=37°E] Two of the best-known faults on the Moon are Rupes Cauchy and
Moon Crater Plinius and the Apollo 11 Landing Site
The week of February 4 – 10 takes us from New Moon to Day 5. This week we will highlight the crater Plinius and the Apollo 11 site, visible on Sunday evening. Plinius: [NE/H12] Standing sentinel between Tranquillity and Serenity
Craters in the Fra Mauro Region: Important Process that Shaped the Moon
The week of January 28 – February 3 takes us from Day 23 through Day 28. This week we will highlight the Fra Mauro region, which is viewable on Tuesday morning before sunrise. Fra Mauro region: [SW/K8; L=17°W] Craters in
409th Anniversary of One of the Greatest Scientific Discoveries Ever Made
The week of Jan. 7-13 takes us from Day 1 to Day 7. This week we will highlight the crater Janssen, viewable on Thursday evening. Janssen: [SE/P13; L=40°E] Janssen is located 85 miles southwest of the Rheita Valley [SE/N14] (which
A Sky Viewer’s Delight: Rilles, Craters and Comets
The week of December 17-23 takes us from the end of Day 9 through Day 16. This week we will highlight Mare Humorum, the Hippalus rilles, the craters Gassendi, Gassendi A (all viewable on Tuesday evening), and Comet 46/P Wirtanen.
Rima Sirsalis is a Gift to Amateur Astronomers
The week of November 19- 25 takes us from the end of Day 11 through Day 17. This week we will highlight the Sirsalis rilles, viewable on Tuesday evening. Rimae Sirsalis: [SW/L3-4] Just in from the southwest shore of Oceanus