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Showing results for tags '127mm mak'.
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I recently had a minor chest operation which has temporarily left me unable to lift anything heavy, which has curtailed my astronomical activities. Last night, being clear in the late evening and early hours, seemed too good to miss, so I set up my 127mm Maksutov in place of the CPC800. I had intended to image Mars as well, but discovered in the early hours that having set up in a different position to my 30 May effort, Mars was blocked by an adjacent building till dawn. Equipment: 127mm Maksutov, SLT mount, wood tripod, ASI224MC camera, ADC, each best 20% of 5000 frames, processed in Registax6. The Great Red Spot should just be visible disappearing around the side of Jupiter. Part of the Cassini division is visible in the Saturn image. Overall these have not turned out too badly, considering the low altitude and poor seeing.
For once I set up my two catadroptic imaging scopes together to see how they compared, and how well the smaller one cut through the crud. C8 SCT on SE mount, ASI 120MC, ADC, processed in Registax6, 3000 frame video. Celestron 127mm Mak on Nexstar SLT mount, wood tripod, ASI120MC , ADC, processed in Registax6, 3000 frame video. The 127mm images are slightly smaller, placed second. The bigger scope seems to do better. I thought that Saturn did not change much and was just a seeing test target, but the shadow of the planet on the rings is now distinctly asymmetrical. The dark smudges in the C8 Mars images correlate well with real features. Mars altitude about 11 deg. The dust storm seems to be over. The seeing was better than it's been for a while.
Hi all, haven't been able to get the scope out much lately due to the weather, but have managed a couple of half decent Jupiter images since new year. I've been trying out Autostakkert2 and Planetary Image Preprocessor (PIPP) for preprocessing, aligning and stacking frames instead of Registax, though I am still using Registax6 for wavelets. This is probably my best effort from Jan 5th, a little early for the GRS it is just coming into view on the right hand (Western) limb. Happy new year and clear skies to all