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



    
        

            DustSpeakers
Elephant's Trunk Nebula, IC 1396
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Elephant's Trunk Nebula, IC 1396

Getting plate-solving status, please wait...
Elephant's Trunk Nebula, IC 1396, 



    
        

            DustSpeakers
Elephant's Trunk Nebula, IC 1396
Powered byPixInsight

Elephant's Trunk Nebula, IC 1396

Technical card

Imaging telescopes or lenses: Williams Optics RedCat 51

Imaging cameras: ZWO ASI1600MM Pro

Mounts: Celestron CGX

Guiding cameras: ZWO ASI120MM-S

Software: Startools 1.5  ·  Deepsky Stacker Deep Sky Stacker (DSS)  ·  Kstars/EKOS/INDI  ·  Gimp 2.10.8

Filters: ZWO LRGB 31 MM,Halpha,SII,OIII


Dates:April 22, 2020

Frames: 210x300" (17h 30')

Integration: 17h 30'

Avg. Moon age: 28.98 days

Avg. Moon phase: 0.34%


Basic astrometry details

Astrometry.net job: 4386346

RA center: 21h38m56s

DEC center: +57°3245

Pixel scale: 3.165 arcsec/pixel

Orientation: 259.204 degrees

Field radius: 1.613 degrees


Resolution: 2262x2890

Locations: Home (Bortle 5), Yateley, United Kingdom

Data source: Backyard

Description

09 June 2020

- Reprocessed with better star definition and colour

04, 10, 11, 19, 21, 22 Apr 2020 – From my back garden - CGX, Redcat 51, EFW filter wheel, ASI 1600MM Pro mono camera. All subs guided with camera at 200 gain, -20 degC

• Ha 5.5 hours

• SII 5 hours

• OIII 7 hours

17 hours total! My longest project so far.

Processed in DSS, StarTools and Gimp in SHO palette

[From Wikipedia]

The Elephant's Trunk Nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth. The ‘Elephant’s Trunk’ is the dark, dense globule IC 1396A; it is commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim. The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star (HD206267) that is just to the left of IC 1396A. The entire IC 1396 region is ionized by the massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays.

Comments

Revisions

  • Elephant's Trunk Nebula, IC 1396, 



    
        

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    Original
  • Elephant's Trunk Nebula, IC 1396, 



    
        

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    B
  • Final
    Elephant's Trunk Nebula, IC 1396, 



    
        

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    C

B

Description: Reprocessed with better star definition and colour

Uploaded: ...

C

Description: Added extra 1.5 hrs Ha, rotated and denoised

Uploaded: ...

Sky plot

Sky plot

Histogram

Elephant's Trunk Nebula, IC 1396, 



    
        

            DustSpeakers