IC 1396 – The Elephant’s Trunk Nebula

IC 1396 – The Elephant’s Trunk Nebula

The Celestron RASA 11″ doing it’s job at F/2.2 with really good seeing this fall.  I captured this image over multiple nights with RGB filters for the stars and then Sulfur, Hydrogen, Oxygen filters for the nebulosity in this bright and energetic region.

Telescope: Celestron RASA 11 (620mm focal @ f/2.2)
Filters:  Astronomik MaxFR 50x50mm Square SHO & Deep Sky RGB
Main Camera:  ZWO ASI 6200mm-pro Monochrome
Tilt & BackFocus Adjuster:  ASG Electronically Assisted Tilt (EAT)
Mount:  iOptron CEM 120EC
Guide Scope:  William Optics 50mm Uniguide
Guide Camera:  ZWO ASI 290mm-mini

Location:  Pendleton, Oregon
Observatory:  NexDome 2.4m Automated
Bortle:  3
Long & Lat:  45.67N, -118.79 W

Date: September 22nd – October 4th, 2024
Ha:  79 x 300 seconds
Oiii:  66 x 300 seconds
Sii:  69 x 300 seconds

R:  27 x 60 seconds
G:  31 x 60 seconds
B:  45 x 60 seconds

Total Integration time ~20 hrs

Calibration Bias: 20
Calibration Dark: 20
Calibration Flats: 25 for each filter

Gain:  100
Cooling:  -10
Processing Software
:   Captured with NINA, Stacked with Astro Pixel Processor,  Processed in PixInsight