Thread: M17 in narrowband colour
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Old 12-08-2019, 04:30 PM
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Geoff45 (Geoff)
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Geoff45 is offline 		 
Join Date: Jul 2006
Location: Sydney
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M17 in narrowband colour
Added OIII, SII to my Ha version:

https://www.astrobin.com/420132/B/?nc=user
Geoff
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