Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 5866  ·  NGC 5905  ·  NGC 5907  ·  NGC 5908
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NGC 5907 - TEST FOR NOISE IN LIVE STACKING, CHERUBINO
NGC 5907 - TEST FOR NOISE IN LIVE STACKING
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NGC 5907 - TEST FOR NOISE IN LIVE STACKING

Acquisition type: Lucky imaging
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NGC 5907 - TEST FOR NOISE IN LIVE STACKING, CHERUBINO
NGC 5907 - TEST FOR NOISE IN LIVE STACKING
Powered byPixInsight

NGC 5907 - TEST FOR NOISE IN LIVE STACKING

Acquisition type: Lucky imaging

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Description

The proposed image is the composition of 6 images taken consecutively in the live stacking on the galaxy NGC 5907 from Milan (Italy) on 27 July 2023 with a Bortle 9+ skyThe images, obtained with an ASI 1600 mono camera and a 25a filter (longpass red), have not undergone any manipulation except cropping. The sensor temperature was 3°CThese are single frames added together from 30 seconds of exposure with gain 200It seems interesting to note how the progression of the integration allows ever smaller benefits, so much so that beyond the 64 poses (ie one step beyond what is shown) it is very little useful to go.In fact, for some time now I have decided not to go beyond 90/100 frames in my shooting, also due to the continuous presence of satellites and planes which, in live stacking, even using sharpcap sigma clipping, remain in the frames.

Paolo Casarini
www.dark-star.it

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NGC 5907 - TEST FOR NOISE IN LIVE STACKING, CHERUBINO