Celestial hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  68 Ori  ·  IC 2159  ·  LBN 854  ·  Monkey Head Nebula  ·  NGC 2174  ·  NGC 2175  ·  Sh2-252  ·  The star 68Ori
NGC 2174 / The Monkey Head Nebula, Adrian Jannetta
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NGC 2174 / The Monkey Head Nebula

NGC 2174 / The Monkey Head Nebula, Adrian Jannetta
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NGC 2174 / The Monkey Head Nebula

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Description

This was a frustrating image to capture!  Several false starts as clear evenings turned cloudy before I'd begun imaging.  Eventually I had enough subs accrued over a couple of clear-ish evenings to begin to process something.  The result isn't too bad considering the amount of time available.  I've started using NINA for image acquisition.  It's running perfectly...but on the second imaging run it chose a default gain of more than 500 and I didn't notice until after I'd finished.  The resulting subs were very noisy.  When blending the images together in PixInsight - I weighted the two runs in a very unscientific 2:1 ratio.  The resulting noise was much lower and noise reduction techniques gave a decent result in PI.

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NGC 2174 / The Monkey Head Nebula, Adrian Jannetta