The week of December 27 – January 2 takes us from Day 23 to New Moon. This week we will highlight the Hippalus Rilles located in the SW quadrant of the Field Map at M6 and viewable on Tuesday morning.
Hippalus Rilles on the Moon
Crater de Gasparis – Hub of Rille Activity on the Moon
The week of November 29-December 5 takes us from Day 24 to Day 1. This week we will highlight the de Gasparis rilles and the Marius Hills, viewable between 4:00 AM and 5:00 on Tuesday morning. de Gasparis rilles: [SW/M4]
Moon Crater Hevelius and Lunar Basin Grimaldi is the Darkest Spot on the Moon
The week of November 1-7 takes us from Day 26 to Day 3. This week we will highlight the moon crater Hevelius and the lunar basin Grimaldi located near the western limb of the Moon and viewable before sunrise on
Straight Wall (Rupes Recta): Two of the Best-Known Faults on the Moon
The week of September 7 – October 3 takes us from Day 20 to Day 27. This week we will highlight Rupes Recta, the Straight Wall, viewable on Tuesday, Day 22, after midnight. Straight Wall: (Rupes Recta): [SW/M9] Two of
Moon Craters Atlas and Hercules have Blankets of Surrounding Ejecta, Known as a Glacis
The week of September 20-26 takes us from Full Moon to Day 21. This week we will highlight the moon craters Hercules and Atlas, viewable on Thursday evening. Hercules and Atlas1: [NE/E13-14] Just east of Lacus Mortis (the “Lake of
Ariadaeus and Rima Hyginus: Rilles on the Moon
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.
Moon Crater Alphonsus: Central Peak and a Floor that Displays Rilles and Small Craters
The week of April 19-25 takes us from Lunar Day 7 to Day 14. This week we will highlight the crater Alphonsus, viewable on Monday night. Alphonsus: [SW/L9] Examine the adjoining rims of Ptolemaeus and Alphonsus. Which crater do you
Rimae Ramsden and the Milichius Domes on the Moon
The week of April 5-11 takes us from Lunar Day 24 to New Moon, so you’ll have to do early morning viewing. This week we will highlight Rimae Ramsden and the Milichius domes in the SW quadrant of the Field
The Great Eastern Chain: A Conspicuous Chain of Large Craters on the Moon
The week of March 29 – April 4 takes us from Lunar Day 16 to Day 23. This week we will highlight a feature called The Great Eastern Chain, located in the SE quadrant of the Moon bordering Mare Fecunditatis.
Rupes Cauchy: One of the Best-Known Faults on the Moon
The week of March 1-7 takes us from Lunar Day 18 to Day 24. This week we will highlight Rupes Cauchy, located on the eastern portion of the Sea of Tranquility. Rupes Cauchy [NE/J13]: One of the best-known faults on