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Contains:  B160, B161, B162, B163, B365, B367, IC 1396, IC1396, Sh2-131, VdB142
Getting plate-solving status, please wait...

Elephant Trunk Nebula (IC 1396)

Imaging telescopes or lenses: William Optics GT71 71mm f/5.9 Apo Refractor

Imaging cameras: Lacerta M-Gen II Autoguider

Mounts: Orion Atlas EQ-G

Guiding telescopes or lenses: Orion 50mm Guide Scope with helical focusing

Guiding cameras: ZWO ASI1600MM Cooled PRO

Focal reducers: William Optics 0.8X Field Flattener

Software: Adobe Lightroom CC  ·  Photoshop CC  ·  Main Sequence Software Sequence Generator Pro, v3.0  ·  Pleaides PixInsight Core 1.8

Filters: Astrodon OIII 3nm-31mm  ·  Astrodon SII 3nm-31mm  ·  Astrodon Ha 3nm-31mm

Dates:June 21, 2018June 22, 2018June 23, 2018June 28, 2018June 29, 2018

Astrodon Ha 3nm-31mm: 201x180" (gain: 139.00) -15C bin 1x1
Astrodon OIII 3nm-31mm: 56x180" (gain: 139.00) -15C bin 1x1
Astrodon SII 3nm-31mm: 47x180" (gain: 139.00) -15C bin 1x1

Integration: 15.2 hours

Darks: ~30

Bias: ~50

Avg. Moon age: 11.85 days

Avg. Moon phase: 82.20%

Bortle Dark-Sky Scale: 4.00 job: 2710428

RA center: 21h 38' 51"

DEC center: +57° 27' 38"

Pixel scale: 2.305 arcsec/pixel

Orientation: 60.204 degrees

Field radius: 1.620 degrees

Resolution: 4047x3035

Locations: Monterey Pines Observatory, Monterey, California, United States

Data source: Backyard


Processing these data has been very challenging. Over the last several months I have attempted a variety of approaches, but never quite got what I was looking for. This is my latest attempt. I am eager to learn the response of my Astrobin colleagues.



Gary Lopez
License: None (All rights reserved)

Sky plot

Sky plot


Elephant Trunk Nebula (IC 1396), 


            Gary Lopez