IC 1396 - Elephant Trunk Nebula

Posted by dcrowson
on Wednesday, September 22, 2021
IC 1396 (really IC 1396A, Sh2-131, LBN 451 and others) is a large complex of nebulae located approximately 3,261 light-years away in Cepheus.

I originally imaged this in Ha and RGB (as I normally do for Sharpless objects) but I thought it might look good in LRGB.

Ha – 26x1800s – 780 minutes – binned 1x1
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

1,140 minutes total exposure – 19 hours – between the two images

Imaged over nine nights in October and November, 2020 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

LRGB - https://www.flickr.com/photos/dcrowson/51504687931/sizes/l/
LRGB annotated - https://www.flickr.com/photos/dcrowson/51504687871/sizes/l/

HaRGB - https://www.flickr.com/photos/dcrowson/51505397884/sizes/l/
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