Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  IC 1396  ·  The star 13Cep  ·  The star Garnet Star (μCep)
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Elefant's Trunk nebula, 



    
        

            Johannes Bock
Elefant's Trunk nebula
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Elefant's Trunk nebula

Getting plate-solving status, please wait...
Elefant's Trunk nebula, 



    
        

            Johannes Bock
Elefant's Trunk nebula
Powered byPixInsight

Elefant's Trunk nebula

Technical card

Imaging telescopes or lenses: William Optics SpaceCat 51 APO 250mm f/4.9  ·  TS-Optics 80mm f/6.25 FPL53 Triplet APO carbon

Imaging cameras: Canon EOS 600D mono  ·  Nikon D810 astrocool CentralDS full spectrum

Mounts: SkyWatcher AZ-EQ5 GT pro CG-5 tuned

Focal reducers: TS-Optics Reducer Flattener 3" 0.79x

Filters: Optolong L-eXtreme 2"  ·  Hutech IDAS IDAS HEUIB II Ha  ·  Astronomik H-alpha 12nm CCD Clip-Filter EOS APS-C

Accessory: Lacerta MGEN 2  ·  APM Image Master 50/200


Frames:
Astronomik H-alpha 12nm CCD Clip-Filter EOS APS-C: 26x900" (6h 30') ISO800
Hutech IDAS IDAS HEUIB II Ha: 38x300" (3h 10') ISO800 -10C
Optolong L-eXtreme 2": 32x600" (5h 20') ISO1250 -10C

Integration: 15h

Bortle Dark-Sky Scale: 4.00


Basic astrometry details

Astrometry.net job: 4116121

RA center: 21h 39' 17"

DEC center: +57° 26' 24"

Pixel scale: 2.436 arcsec/pixel

Orientation: 180.027 degrees

Field radius: 2.697 degrees


Resolution: 6439x4694

Data source: Backyard

Description

The elephant trunk nebula IC1396 consists of low interstellar hydrogen and oxygen gas with a high proportion of dust. The actual elephant trunk (vdB 142) is a dark, dense globule with a brightly lit edge (IC1396A). The bright edge is the surface of a dark cloud that is ionized by the bright blue star HD 206267, which lies somewhat in its center. The inner region of the nebula (OIII), shown in blue in this photo, is also ionized by this massive star, except for other dense globules, by its strong ultraviolet radiation.
Another bright giant star is the garnet star on the grounf, whose yellowish light is visible on the hydrogen region on the loeer edge of the nebula. The entire image section is dominated by dust outside the nebula in which there are thousands upon thousands of stars of different luminosity and thus colors.

Comments

Sky plot

Sky plot

Histogram

Elefant's Trunk nebula, 



    
        

            Johannes Bock