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Iris nebula in Ha.

Derbyshire Dave

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1 hour ago, Bob Dobber said:

Does it have any Ha?? It's a reflection nebula so presumed there were no emissions of the Ha variety...

I realise it's a reflection nebula,which is why I'm doing the RGB,  but thought it interesting to try the Ha too. Now that the moon's to bed I'll grab some luminance as well as RGB, and see where that leads me.

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