The week of July 17-23 takes us from Day 23 to New Moon. The Moon does not rise until around 1:00 AM on Monday morning, so this week is reserved for intrepid viewers. This week we will highlight the Pytheas
Secondary and Ghost Craters on the #Moon
![Secondary and Ghost Craters on the #Moon Secondary and Ghost Craters on the #Moon](http://andrewplanck.com/wp-content/uploads/2017/07/Pytheas-secondary-craters-750x350.png)
The week of July 17-23 takes us from Day 23 to New Moon. The Moon does not rise until around 1:00 AM on Monday morning, so this week is reserved for intrepid viewers. This week we will highlight the Pytheas