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Established 16/3/2000

Saturn Saturn with NexStar11 GPS and ToUCam Pro IISaturn

Saturn - click for larger view Saturn and its rings - click for bigger
This is two versions of the same image, one (left) stacked and processed with RegiStax Version 2, and the other (right) with RegiStax Versio 3. You can see there are differences, but in the end it's difficult to get any extra detail using RegiStax 3 simply because of the quality of the original AVI file captured by the Philips software which came with the Philips ToUCam Pro II. Exposure details: 1/25th, 15 frames per second, medium-high gain, using Philips ToUCam Pro II through a Celestron NexStar 11 GPS using a 2x barlow giving a focal ratio of f/20. In both cases you can click the image to see a larger version.
Both the above images were taken on December 28th, 2004, using a Philips ToUCam Pro II through a Celestron NexStar 11 GPS with a 3x barlow. This was only my third night ever trying to webcam the planets and it taught me a few lessons. The elevation of Saturn was low and it was a breezy night, so there was tonnes of turbulence in the atmosphere. There was also strong moonlight. The formation of frost on the corrector plate of the NexStar came on fairly early too, which didn't help at all with the definition of the subject. However, the Cassini Division is clearly visible in both images, and there is at least one darker cloud belt visible on Saturn itself. Next time I think I'll wait until Saturn is near the meridian. Image on left is stacked and processed with RegiStax 3, while that on the right was done with V2.
Saturn and its rings - click for larger view Although slightly over-sharpened in Adobe Photoshop CS due to an unsharp image resulting from frost on the corrector plate, this picture shows the sort of detail which can be seen using a webcam during even unfavourable conditions. Again the Cassini Division is easy to pick out, and their is banding detail to be seen on Saturn itself. Not bad for a first time effort! Looking forward to getting out during more favourable conditions!

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All information and photos, except where otherwise stated, copyright, © Anthony Murphy, 1999-2015
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