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Elephant Trunk Nebula (IC 1396A), 


            Ara Jerahian
Elephant Trunk Nebula (IC 1396A)

Elephant Trunk Nebula (IC 1396A)

Technical card

Resolution: 2480x2480

Dates:May 25, 2019May 27, 2019June 3, 2019June 4, 2019June 8, 2019

ZWO Ha 7nm 1.25": 50x300" (gain: 139.00) -20C bin 1x1
ZWO OIII 1.25" 7nm: 35x300" (gain: 200.00) -20C bin 1x1
ZWO SII 1.25" 7 nm: 28x300" (gain: 200.00) -20C bin 1x1
ZWO 1.25" Blue: 20x60" (gain: 75.00) -20C bin 1x1
ZWO 1.25" Green: 20x60" (gain: 75.00) -20C bin 1x1
ZWO 1.25" Red: 20x60" (gain: 75.00) -20C bin 1x1

Integration: 10.4 hours

Darks: ~50

Flats: ~50

Flat darks: ~50

Bias: ~50

Avg. Moon age: 10.13 days

Avg. Moon phase: 27.09%

Bortle Dark-Sky Scale: 5.00

Temperature: 2.83 job: 2751693

RA center: 323.939 degrees

DEC center: 57.499 degrees

Pixel scale: 1.161 arcsec/pixel

Orientation: 270.392 degrees

Field radius: 0.566 degrees

Locations: Home, Cape Elizabeth, ME, United States

Data source: Backyard


Decided to go deeper than I normally do on this one. Collected 5 minutes subs in NB, and 60s subs in RGB for star color replacement. It's nice to exercise some restraint and collect and cull the appropriate amount of data for a target before processing.

This target is a gorgeous and dense concentration of gas and dust, leading to high generation of protostars.

I'm happy with the way this turned out! I hope you all approve :)




Ara Jerahian
License: None (All rights reserved)

Sky plot

Sky plot


Elephant Trunk Nebula (IC 1396A), 


            Ara Jerahian