M27 synthetic true color, starless

M27 combined processed SHO, with combined individually processed channels,

individually processed SHO, 5 total versions.

Assume:

PL16803 QE S:H:O=1:1.069:1.287

S(I (6717):I (6730) = 0.6:1):

H(H-α: H-β: H-γ= 2.85:1:0.47)

O(I (5007):I (4959) = 1:1/3)