The week of February 11-17 takes us from Day 6 through Day 12. This week we will highlight the feature informally known as the Lunar X. Lunar X: [SE/M10] Around 6 days 22 hours (depending on libration – you have
Total Lunar Eclipse (“Blood Moon”) and Crater Clavius
The week of Jan. 14-20 takes us from Day 8 to Day 14. This week we will highlight the crater Clavius. Clavius: [SW/Q8] If you catch the Moon early in Day 8 when the terminator is around 15° (i.e., it
Moon Crater Schiller and the Lunar Dome Gruithuisen Gamma
The week of December 31 – January 6 takes us from the end of Day 24 to Day 1. This week we will highlight the crater Schiller and the lunar dome Gruithuisen Gamma, viewable around 4:00 AM on Tuesday morning.
Floor-Fractured Craters on the Moon and Secondary Craters
The week of December 24-30 takes us from Day 17 to 23. This week we will highlight the crater Taruntius, viewable on Monday evening. Taruntius: [NE/J14] Located on the north shore of Fertility, Taruntius is a wonderful example of a
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.
Two Significant Areas on the Moon and the Geminid Meteor Shower
The week of December 10-16 takes us from Day 3 through Day 8. This week we will highlight the crater Fracastorius and Mare Nectaris, the Sea of Nectar, viewable on Wednesday night, and the Geminid meteor shower which will peak
Serpentine Ridge: The Moon’s Best Example of a Wrinkle Ridge
The week of November 26 – December 2 takes us from Day 19 to Day 25. This week we will highlight the Serpentine Ridge, viewable beginning at 10:30 on Monday night. Serpentine Ridge: [NE/G12] West of the
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
Unique Shapes of Craters on the #Moon
The week of October 22-28 takes us from Day 13 to 19. This week we will highlight the craters Wargentin, Nasmyth & Phocylides, viewable on Monday evening. Wargentin: [SW/P4] This is one of the more unusual craters on the Moon.
Intact Craters and Wrinkle Ridges on the #Moon
The week of October 8-14 takes us from Day 20 through Day 5. This week we will highlight the craters Peirce & Picard and the wrinkle ridge Dorsum Oppel, viewable on Friday evening. Peirce & Picard: [NE/H15] The two largest