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Old 20-03-2021, 11:25 PM
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muletopia (Chris)
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A Thursday picture

The seeing was awful and clouds threatened. I set out for two hours of subs but the clouds did not permit this. So only 17 5 minute subs were gathered. The seeing was so poor that PHD2 multistar could not operate on the eleven detected stars.Eventually user chose star was successful but the guiding RMS was about .45 arc seconds for the session.


Camera QHY8Lc at gain 30 and offset 130 cooled to -15 C
Telescope Mewlon 210 with Takahashi field flattener/reducer (.8).
Mount Mesu Mount 200 Mk1


Image capture with Nebulosity4
Images debayered and pre-processed with N4
Stacked with Siril
Processing Startools 1.7 with final tweeks again in Nebulosity 4




The lack of data means the final image is very noisy but I was most pleased to acquire this Thursday photo.


Chris
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Old 21-03-2021, 06:33 AM
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leon
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Yea Chris, as you say a bit noisy, however a great capture indeed, well done.

Leon
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Old 21-03-2021, 12:54 PM
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muletopia (Chris)
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Thanks for your kind words Leon


Chris
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Old 21-03-2021, 10:17 PM
alexfine (Alex)
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so cool !
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Old 22-03-2021, 09:52 AM
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Nikolas (Nik)
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for the lack of data the image came out very well.
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Old 22-03-2021, 10:22 AM
AdamJL
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interesting gain/offset combo!

Nice colours in this one
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Old 22-03-2021, 01:20 PM
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muletopia (Chris)
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Thank you gentlemen,
Adam, there is no science behind the offset/gain combination, it just works.


Chris
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