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Elephant Trunk, IC 1396, H-alpha and Near Infrared Animation, 



    
        

            Eric Coles (coles44)

Elephant Trunk, IC 1396, H-alpha and Near Infrared Animation

Imaging telescopes or lenses: Pentax Takumar 6x7 200 mm

Imaging cameras: QSI 583 WSG

Mounts: Astro-Physics Mach1AP GTO with GTOCP3

Guiding telescopes or lenses: Pentax Takumar 6x7 200 mm

Guiding cameras: QSI 583 WSG

Software: Pixinsight 1.8  ·  Photoshop CS5  ·  Maxim DL Pro 5

Filters: Astrodon 5nm H-alpha  ·  Astrodon Near-infrared >700 nm


Dates:Sept. 16, 2014Oct. 7, 2014

Frames:
Astrodon 5nm H-alpha: 26x900" (6h 30') bin 1x1
Astrodon Near-infrared >700 nm: 10x900" (2h 30') bin 1x1

Integration: 9h

Avg. Moon age: 18.11 days

Avg. Moon phase: 72.32%


Basic astrometry details

Astrometry.net job: 384716


Resolution: 620x620

Locations: Deep Sky West, Rowe, New Mexico, United States

Description

This is First Light of the Astrodon Near-Infrared >700 nm filter (NIR) versus what you see with the H-alpha filter. Several of us were interested to see if the NIR filter would show any structures other than stars. The animation clearly shows that for the most part, the answer is no. Although there are a series of dark structures that are similar in both images and likely dark clouds (not dark matter) in front of the emission nebula, obscuring the stars and in the case of the H-alpha image, the emissions behind. This lack of coincident emission nebulous structures in NIR image was to be expected considering the absence of any strong emission lines in the NIR area of the electromagnetic spectra.

PLATE SOLVE

Center (RA, Dec): (324.851, 57.585)

Center (RA, hms): 21h 39m 24.269s

Center (Dec, dms): +57° 35' 06.787"

Size: 3.52 x 3.52 deg

Radius: 2.492 deg

Pixel scale: 12.7 arcsec/pixel

Orientation: Up is -88 degrees E of N

Comments

Histogram

Elephant Trunk, IC 1396, H-alpha and Near Infrared Animation, 



    
        

            Eric Coles (coles44)