Michael Nolle
Craters Aristarchus, Herodotus and Vallis Schroeteri 2020/06/03
The seeing was not very good and variable (5-7/10) and the image was very smudgy sometimes.
The video was taken through a 10 inch ACF from Meade with 2x Hyperion Barlow lens, which gives me around 5 m focal length. In order to reduce the effects of the seeing and atmospheric dispersion I used a red interference filter (from the RGB filter set) which has an upper limit at the IR side.
35% of 1200 images of 5 ms each stacked in Autostakkert and sharpened and brightness/contrast adjusted in PS.
Tracking was very bad that night and is the reason why the video was so short. North is to the left. I orientated it that why because of the format of the image.
Click on the image to enlarge.
Craters Aristarchus, Herodotus and Vallis Schroeteri 2020/06/03
The seeing was not very good and variable (5-7/10) and the image was very smudgy sometimes.
The video was taken through a 10 inch ACF from Meade with 2x Hyperion Barlow lens, which gives me around 5 m focal length. In order to reduce the effects of the seeing and atmospheric dispersion I used a red interference filter (from the RGB filter set) which has an upper limit at the IR side.
35% of 1200 images of 5 ms each stacked in Autostakkert and sharpened and brightness/contrast adjusted in PS.
Tracking was very bad that night and is the reason why the video was so short. North is to the left. I orientated it that why because of the format of the image.
Click on the image to enlarge.