M27 in two palettes

Natural colors

In a Hubble palette, S-II=Red, H-a=Green and O-III=Blue -

I was able to shoot data for other channels and more lights for H-alpha, last night.

Same data than H-alpha version in last post.

Additional two hours for H-a, now 4,5h together,

6x600s, binned 2x2, for O-III and 2x600s, binned 3x3, for S-II.

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More information about the target HERE.

O-III channel is very strong. Note. there is interesting looking shadow at three a clock position.

Hint of an other shadow can be seen in a nine a clock position too.