Lunar session - intermittent high cloud
Posted: Thu May 12, 2022 10:24 am
Captured 11th May 2022 around 21:00 (just after sunset). What was supposed to be a clear night was spoilt by intermittent high cloud. The sky looked clear but the images during capture had wildly varying histograms. The Moon was 77% waxing at 42° elevation.
Celestron AVX mount, Celestron C8 SCT, IR685 filter, Skyris 618M CCD camera, JMI motorised focuser. All captures were 7200 frames @ 120fps, SER, MONO8 ~2.5ms exposure and gain=250. Autostakkert to stack best 50% with drizzle 1.5 and Registax 6 for sharpening, gamma, contrast and brightness.
Here are the Registax settings used.
No other software was used for processing.
Dave
Celestron AVX mount, Celestron C8 SCT, IR685 filter, Skyris 618M CCD camera, JMI motorised focuser. All captures were 7200 frames @ 120fps, SER, MONO8 ~2.5ms exposure and gain=250. Autostakkert to stack best 50% with drizzle 1.5 and Registax 6 for sharpening, gamma, contrast and brightness.
- Clavius was captured with a 0.63x reducer.
- Philolaus is the crater in shadow at the rim on the Plato image.
- Rupes Recta is the dark scar near the centre of the image.
- The wildly varying brightness of the images can be attributed to ever changing thin cloud.
Here are the Registax settings used.
No other software was used for processing.
Dave