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Contains:  B161, IC 1396, IC1396, Sh2-131, VdB142
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IC 1396 - Elephant Trunk, 



    
        

            Linda
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Technical card


Dates:Aug. 31, 2019Sept. 8, 2019

Frames:
Astrodon Gen 2 Series I Blue: 180x20" (gain: 76.00) -15C bin 1x1
Astrodon Gen 2 Series I Blue: 60x60" (gain: 76.00) -15C bin 1x1
Astrodon Gen 2 Series I Green: 230x20" (gain: 76.00) -15C bin 1x1
Astrodon Gen 2 Series I Green: 62x60" (gain: 76.00) -15C bin 1x1
Astrodon Gen 2 Series I Red: 270x20" (gain: 76.00) -15C bin 1x1
Astrodon Gen 2 Series I Red: 72x75" (gain: 76.00) -15C bin 1x1

Integration: 7.3 hours

Darks: ~50

Flats: ~25

Flat darks: ~50

Avg. Moon age: 5.45 days

Avg. Moon phase: 37.42%


Astrometry.net job: 2913439

RA center: 21h 38' 33"

DEC center: +57° 48' 43"

Pixel scale: 1.621 arcsec/pixel

Orientation: 126.891 degrees

Field radius: 0.908 degrees


Resolution: 3212x2440

Locations: Home, Broadlands, VA, United States; Spruce Knob Mountain Center, Circleville, WV, United States

Data source: Traveller

Description

Half of this came from the Almost Heaven Star Party and the other half came from home but from an SNR perspective the AHSP data probably dominates the weighting.

Processing notes:
ABE on R, B and G masters
Channel Combination
Dynamic Crop
PCC
MLT chrominance & luminance noise reduction
Masked Stretch
LHE
MLT sharpening
Adam Block's star de-emphasis
Curves for contrast
Dark Structure Enhance

With this framing it reminds me more of E.T.'s finger reaching into the frame than an elephant trunk but that's probably just me. :)

Comments

Author

ac4lt
Linda
License: Attribution-NonCommercial-ShareAlike Creative Commons
1672
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IC 1396 - Elephant Trunk, 



    
        

            Linda