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M42 in moonlight

Trevor N

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Bit of an experiment really. I have a 2" 35nm Ha filter that I have never used. I took this shot at prime focus on an ed120 with a modded canon 1000D, It's a mix of 40 x 1 minute subs. There was so much damp I daren't take the laptop out so this is unguided on an HEQ5 hence the short exposures. The full moon was very close and I wondered if the narrow band was "narrow" enough but it seems OK. Only used the red channel. Regards , Trevor


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Thanks Dave. Seems to work as long as you dump the green and blue channels. I know the resolution is not as good but there are still enough pixels to go around. As I said it was a bit of an experiement but I'll cetainly have another go. Regards , Trevor

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