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Orion Nebula (test image) | by jackdoerner
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Orion Nebula (test image)

Gas Hypersensitized

24h in vacuum; 48h in 5% hydrogen, 95% nitrogen at 50C

Stored for three months frozen in argon

 

Rated at ISO 200

20:00 exposure, manually guided

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Taken on January 17, 2017