Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  IC 1396
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Elephant's Trunk in Narrowband, 


            Frank Kane
Elephant's Trunk in Narrowband
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Elephant's Trunk in Narrowband

Technical card

Imaging telescopes or lenses: Sky-Watcher StarLux 190MN

Imaging cameras: Atik 383L+

Software: Pleiades Astrophoto PixInsight

Filters: Astronomik 6nm H-alpha OII and SII

Accessory: MoonLite Focuser w/High Res Stepper Motor

Dates:July 20, 2020

Frames: 66x300"

Integration: 5.5 hours

Avg. Moon age: 29.30 days

Avg. Moon phase: 0.06%

Basic astrometry details

Astrometry.net job: 3686996

RA center: 21h 37' 23"

DEC center: +57° 39' 32"

Pixel scale: 1.114 arcsec/pixel

Orientation: 176.342 degrees

Field radius: 0.590 degrees

Resolution: 2441x2934

Data source: Backyard


The end of the Elephant's Trunk (IC 1396) imaged in narrowband filters. Although from this angle, it looks more like a moose head to us!

Tried several color combinations, but settled on this one:

R: 0.5*S2+0.5*Ha
G: 0.15*Ha + 0.85*O3
B: O3

Ha was used as luminance.


Sky plot

Sky plot


Elephant's Trunk in Narrowband, 


            Frank Kane