#2.5 hours of m82 and m81, first real processing

18 messages · Page 1 of 1 (latest)

steep orchid May 8, 2023, 12:45 AM

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https://drive.google.com/file/d/1yg662sF08pL8iLipqmGyWJtt9hB5dY0c/view?usp=sharing
first real processing with anything more than 30 minutes.
30 second exposures, autoguider comes tomorrow stars are kinda bloated. Used Siril: cropping, photometric colour correction, deconvolution (very needed), hyperbolic transformation, background extraction, green noise removal.

Google Docs

result_8406s.fit

steep orchid May 8, 2023, 1:16 AM

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2.5 hours of m82 and m81, first real processing

undone wharf May 8, 2023, 1:32 AM

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my attempt

paper magnet May 8, 2023, 4:45 AM

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My try with your M81 and M82 including the saved FITS file here https://we.tl/t-XFHOglq4rK

result_8406s_Crop_DBE_CC_GHS.fit

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tacit crest May 8, 2023, 5:58 PM

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steep orchid https://drive.google.com/file/d/1yg662sF08pL8iLipqmGyWJtt9hB5dY0c/view?usp=shari...

steep orchid May 9, 2023, 1:21 AM

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Thanks all, appreciated what other people have done, how has everyone gotten the background so dark

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compared to mine

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Does doing background extraction after doing your stretches matter?

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I have a feeling it could be that

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Also never did any star removal so does that have a measured effect on the colours?

steep orchid May 9, 2023, 1:45 AM

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Also any recommendations to get better data (it was full moon in bortle 7)

fiery crow May 9, 2023, 4:42 AM

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make sure to extract background basically first

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one of the most importatn thigns

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extract vs unextrascted

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in conclusion

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my processing isnt that great

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but probably more integration