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Contains:  IC 1396
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Elephant's Trunk Nebula IC1396 (c-sho), 





    
        

            Ram Samudrala
Elephant's Trunk Nebula IC1396 (c-sho)

Elephant's Trunk Nebula IC1396 (c-sho)

Technical card

Resolution: 4290x3387

Dates:May 2, 2018May 5, 2018May 8, 2018

Frames:
Astrodon Ha 1.25 5nm: 36x300" (gain: 200.00) -15C bin 1x1
Astrodon OIII 1.25 3nm: 48x300" (gain: 200.00) -15C bin 1x1
Astrodon SII 31mm 3nm: 48x300" (gain: 200.00) -15C bin 1x1

Integration: 11.0 hours

Darks: ~20

Avg. Moon age: 19.83 days

Avg. Moon phase: 71.17%

Bortle Dark-Sky Scale: 3.00

Mean FWHM: 3.00

Temperature: 15.00

Astrometry.net job: 2057714

RA center: 324.213 degrees

DEC center: 57.676 degrees

Pixel scale: 1.652 arcsec/pixel

Orientation: 268.302 degrees

Field radius: 1.254 degrees

Data source: Unknown

Description

These are my narrowband versions of the IC1396 aka Elephant's Trunk Nebula (technically IC1396A). I couldn't see this image in Stellarium so I didn't realise how large it was with my FC100DF setup but I was itching to image something with this scope and so I decided to go for it. I was able to capture the Elephant's Trunk region in the greater IC1396 nebula but if I had used my SV70T I'd have gotten the whole thing. I'm still looking for some good targets to image with this scope since I find it to be just the right size to take out the whole setup (with EFW and camera attached) and move it in and then put it back. It's the ideal sized scope (the FS128 is too big especially since I won't be around the entire summer and the SV70T has a nice widefield but it's 30mm less aperture).

I'm now using dso-browser to plan out all my imaging sessions and hopefully some nice targets will pop up for the FC100DF. In any event, there are three images of the Elephant's Trunk region . The first is my attempt to creating a Hubble-like palette and the second is close to the original SHO (where the Ha looks very green) but I thought it looked good also as is. The third is a variation on the first. I'd appreciate comments on which image you prefer and any other comments/criticisms. Unlike my previous images, I dialed back the gain a lot so the stars don't appear as saturated.

Comments

Author

ramdom
Ram Samudrala
License: Attribution Creative Commons
3751
Like

Revisions

  • Final
    Elephant's Trunk Nebula IC1396 (c-sho), 





    
        

            Ram Samudrala
    Original
  • Elephant's Trunk Nebula IC1396 (c-sho), 





    
        

            Ram Samudrala
    B
  • Elephant's Trunk Nebula IC1396 (c-sho), 





    
        

            Ram Samudrala
    C
  • Elephant's Trunk Nebula IC1396 (c-sho), 





    
        

            Ram Samudrala
    E

B

The second image is close to the original SHO (where the Ha looks very green) but I thought it looked good also as is. The first image is my attempt to creating a Hubble-like palette.

C

This is yet another tweak to the colours in the palette. I can't really decide between any of them so I decided put up all three.

E

Ha only image. There's something really aesthetically pleasing about a pure Ha image in monochrome. I am uploading all versions of just the Ha data used in my colour images.

Sky plot

Sky plot

Histogram

Elephant's Trunk Nebula IC1396 (c-sho), 





    
        

            Ram Samudrala