Ursid meteor shower | Andrew Planck

Clavius – Moon Crater Floor Strewn with Craterlets

The week of December 22-28 takes us from Day 3 to Day 9. This week we will highlight the moon crater Clavius, visible on Sunday night close to the terminator. Clavius: [SW/Q8; L=14°W] If you catch the Moon at the

Lunar X on the Moon: Intersection of the Rims of Blanchinus, La Caille, and Purbach

The week of December 16-22 takes us from Lunar Day 16 to Day 22. This week we will highlight an item informally referred to as the “Lunar X,” visible on Sunday night. Lunar X: [SE/M10; L=1°E] Around 6 days 22