Quote:
Originally Posted by Sebbie
...but how long is too long for Jupiter given its fast rotation? I was geting coloured halo around the planet post stack.
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For Jupiter at a focal length of about 7 metres I think around 2 minutes before you'd start to get smearing of detail in good seeing. In poorer seeing, or with less magnification, you can go proportionately longer. Also, the free winjupos program can be used to "derotate" longer videos.
The coloured halo sounds more like focus, or possibly IR bloom. Does the imager have, or have you added an IR block filter?
-Ivan