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Old 17-01-2018, 07:31 AM
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PKay (Peter)
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NGC3372 Carina Nebula

First go at this one.
20 of 4 min subs. Gain = 70
10 Darks, Flats, Bias

Hazy seeing with a great variation between subs.

Still evidence of full well in nearly all the stars.
Will reduce Gain to 50 next time

For the PI enthusiasts.
LINEAR
Auto Background Extraction
Dynamic Crop
Background Neutralisation
Colour Calibration
Mask Generation
Curves Transform
Arc Sin Stretch

NON LINEAR
Histogram Transformation

PhotoShop
Brightness and contrast
Saturation and Hue
Colour balance
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Old 17-01-2018, 09:24 AM
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ChrisV (Chris)
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First Carina of the season ?
Nice job Peter ! Wish I had some clear nights ...
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Old 17-01-2018, 09:45 AM
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PKay (Peter)
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thanks Chris

It was pretty much my only choice (gap in the clouds).

Still waiting to have another go at Alnitak.
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