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Old 25-09-2019, 09:58 PM
morls (Stephen)
Space is the place...

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ghosting

After taking some pics tonight I noticed during processing there was some blurring of the image, almost like ghosting. It may well be collimation - I didn't check before taking images (in a rush...), having done a daylight collimation yesterday.
I'll make sure I do a star test before the next session, but in the meantime I'm just wondering if this ghosting is a symptom of poor seeing? It's more noticeable in the Saturn pic...
Cheers
Stephen
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  #2  
Old 26-09-2019, 02:44 AM
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LostInSp_ce
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Stephen it looks like some bad frames with poor seeing made it into in your final stack. You might have to remove them manually if your stacking program can't.
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Old 26-09-2019, 09:06 AM
Saturnine (Jeff)
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Certainly looks like it could be misalignment of frames during stacking, quite possibly caused by frames affected by poor seeing .
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Old 26-09-2019, 09:15 AM
morls (Stephen)
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Thank you both. I'm not sure how to remove individual frames in autostakkert or registax but I'll check it out.
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