Rosliston Astronomy Group


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Geoff Dryland


I was out last night as well but I found the imaging very strange.

The moon was looking straight down the scope for my primary object (NGC 1909, which is a reflection nebula just to the right of Rigel). So I moved to M101. After 2 hours of Luminance images at 6 minute subs, I then took 1 hour of Ha. The L gave what looked like a huge light gradient, which I think is a reflection off my next doors white paintwork from the street light!! The Ha seemed very grainy and I don't know why. Anyway I made a quick process of the data and this is what you didn't see last night. I did think it was difficult with the moon and a lot of moisture in the air, was that the problem for you?



Also click here to view RAG member’s responses to Geoff’s photo

M101 270215
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