Thread: M17 Narrowband
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Old 06-09-2008, 08:00 PM
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AlexN
Widefield wuss

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Join Date: Mar 2008
Location: Caboolture, Australia
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Incredible amount of detail apparent...

Am I right in assuming that due to the combining, anything in the image that is red is Ha spectrum, blues are OIII spectrum and Greens are SII?

And if so, that gives a fair indication of the nebula's chemical composition?

Looks utterly fantastic... Just wish I understood NB imaging better.
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