Celestial hemisphere:  Southern  ·  Constellation: Eridanus (Eri)  ·  Contains:  NGC 1909  ·  The star λEri  ·  The star ψEri  ·  the Witch Head Nebula
Witch head nebula - IC 2118, David Pastern
Witch head nebula - IC 2118
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Witch head nebula - IC 2118

Witch head nebula - IC 2118, David Pastern
Witch head nebula - IC 2118
Powered byPixInsight

Witch head nebula - IC 2118

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Description

Witch head nebula - IC 2118. Data provided by loldi on reddit. This one was tough to process - medium stretching resulted in blotching. Since I'd never seen this before, I had to do some research, which suggests that there wasn't simply enough subs to push the noise floor down, and to combat this by not stretching the data as aggressively. I stretched as much as I could, doing my best to avoid the blotching. Was a good learning experience.

See:

https://www.reddit.com/r/astrophotography/comments/2urd0p/rastrophotography_public_data_donation_drive/

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Witch head nebula - IC 2118, David Pastern