Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  B161  ·  Erakis  ·  Erakis (μ Cep)  ·  HD205196  ·  HD205510  ·  HD205917  ·  HD205948  ·  HD206081  ·  HD206183  ·  HD206267  ·  HD206482  ·  HD239706  ·  HD239710  ·  HD239712  ·  HD239724  ·  HD239727  ·  HD239729  ·  IC 1396  ·  LBN 451  ·  LBN 452  ·  LBN 455  ·  LBN 456  ·  LDN  ·  LDN 1092  ·  LDN 1093  ·  LDN 1096  ·  LDN 1098  ·  LDN 1099  ·  LDN 1102  ·  LDN 1105  ·  And 15 more.
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IC 1396 - Cosmic Crocodile vs. Space Shark, 



    
        

            AaronW
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IC 1396 - Cosmic Crocodile vs. Space Shark

Getting plate-solving status, please wait...
IC 1396 - Cosmic Crocodile vs. Space Shark, 



    
        

            AaronW
Powered byPixInsight

IC 1396 - Cosmic Crocodile vs. Space Shark

Acquisition details

Dates:
Aug. 31, 2022 ·  Sept. 1, 2022 ·  Sept. 2, 2022 ·  Sept. 3, 2022 ·  Sept. 4, 2022 ·  Sept. 5, 2022 ·  Sept. 6, 2022 ·  Sept. 14, 2022 ·  Sept. 15, 2022 ·  Sept. 16, 2022 ·  Sept. 17, 2022 ·  Sept. 18, 2022
Frames:
Chroma H-alpha 3nm Bandpass 50 mm: 93×900(23h 15′) f/6.9 -10°C bin 1×1
Chroma OIII 3nm Bandpass 50 mm: 78×900(19h 30′) f/6.9 -10°C bin 1×1
Chroma SII 3nm Bandpass 50 mm: 83×900(20h 45′) f/6.9 -10°C bin 1×1
Integration:
63h 30′
Darks:
50
Flats:
50
Bias:
200
Avg. Moon age:
12.87 days
Avg. Moon phase:
54.19%
Bortle Dark-Sky Scale:
7.00

RA center: 21h36m45s.640

DEC center: +58°0456.16

Pixel scale: 0.851 arcsec/pixel

Orientation: 115.309 degrees

Field radius: 1.338 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 9450x6220

File size: 19.5 MB

Data source: Backyard

Description

Usually referred to as the Elephant's Trunk nebula, I see instead a crocodile with its jaws wide open (bottom left) and a shark (composed of various dark nebulae) diving out of the ocean of ionized oxygen gas and spewing dust into the crocodile's mouth.  Who will win this epic battle unfolding in the Cepheus constellation?

Comments

Sky plot

Sky plot

Histogram

IC 1396 - Cosmic Crocodile vs. Space Shark, 



    
        

            AaronW