The week of December 23-29 takes us from Lunar Day 23 to Day 29. This week we will highlight a feature called Rimae Sirsalis, visible on Thursday night. Rimae Sirsalis: [SW/L3-4; L=62°W] Just in from the southwest shore of Oceanus
Moon Crater Rima Hyginus – Line of Linked Craters

The week of December 2 – December 8 takes us from Lunar Day 2 to Day 8. This week we will highlight Rima Hyginus, visible on Saturday night. Rima Hyginus: [NE/J10; L=8°E] At the west end of the Ariadaeus rille,
Moon Crater Humboldt – Cluster of Central Peaks

The week of November 25 – December 1 takes us from Lunar Day 24 to Day 1. This week we will highlight the moon crater Humboldt, visible on Sunday night. Humboldt:1 [SE/M18] This moon crater is best viewed when there
Furnerius: Southernmost of the Moon Craters that Make Up the Great Eastern Chain

The week of November 11-17 takes us from Lunar Day 11 to Day 17. This week we will highlight the moon crater Furnerius, visible on Sunday night. Furnerius: [SE/N16; L=61°E] This is the southernmost of the moon craters that make
First Two Segments of Chain of Large Moon Craters: Langrenus and Vandelinus

The week of October 28 – November 3 takes us from Lunar Day 26 to Day 3. This week we will highlight the moon craters Langrenus and Vandelinus, visible on Sunday night. The Great Eastern Chain: [SE/K-N16; L=61°E] There is
Trio of Moon Craters with Distinct Personalities

The week of April 22-28 takes us from Day 14 to Day 19. This week we will highlight the moon craters Theophilus, Cyrillus, and Catharina viewable on Sunday morning before sunrise and located in the SE quadrant of the Field
Catena Davy – Fascinating Moon Crater Chain

The week of January 1-7 takes us from Day 21 to Day 26. This week we will highlight the Catena Davy viewable on Tuesday night and found in the SW quadrant of the Field Map. Catena Davy: [SW/L9; L=7°W] This
Catena Davy: Moon Crater Chain

The week of August 7-13 takes us from Day 21 to Day 27. This week we will highlight Catena Davy on the moon which is viewable Tuesday morning before sunrise. Catena Davy: [SW/L9; L=7°W] This fascinating moon crater chain was
Vallis Rheita: Series of Interlocking Moon Craters

The week of February 6-12 takes us from Lunar Day 16 to Day 21. This week we will highlight Vallis Rheita, located in the SE quadrant of the Field Map and viewable on Tuesday night. Vallis Rheita: [SE/N14; L=52°E] At
The Great Eastern Chain: Series of Moon Craters

The week of July 25-31 takes us from Day 27 to Day 3. This week we will highlight a series of craters called the Great Eastern Chain. The Great Eastern Chain: [SE/K-N16; L=61°E] There is a conspicuous chain of large