Saturday, June 27, 2015
We had a rare clear night with decent seeing tonight. I lugged out the ETX125 OTA and mounted it on the EQPro. The moon is washing out all the DSOs at the moment, so I decided to do some imaging. Here is an image of the crater Copernicus captured without a barlow using the ASI 120MM. This is a superb camera for lunar and planetary work and it excellent at capturing fine detail as the image below shows; notice the terracing on the sides of the crater. If you look closely, you can see three distinct terraces and the rubble from landslides on the inside edge. Copernicus is 93 km in diameter and 3.8 km deep. There are 3 central peaks. Click the image to enlarge.