Heart Nebula bicolor (pfile)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD14695 · HD14794 · HD14817 · HD15069 · HD15238 · HD15239 · HD15250 · HD15382 · HD15522 · HD15557 · HD15558 · HD15570 · HD15629 · HD15665 · HD15785 · HD15851 · HD16183 · HD16218 · HD16349 · HD236966 · IC 1795 · IC 1805 · LBN 645 · LBN 646 · LBN 647 · LBN 648 · LBN 650 · LBN 654 · LBN 655 · LBN 656 · And 17 more.

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Heart Nebula bicolor

the mach1gto is back in service!

heart nebula bicolor with TMB92SS + 0.8x reducer.

under the theory that hydrogen beta is Pantone 648 (0% red, 17% green, 36% blue) and OIII is Pantone 306 (0% red, 72% green and 88% blue), i used the pixel math expression:

R = ha

G = 0.17*ha + 0.72*oiii

B = 0.36*ha + 0.88*oiii

with rescaling turned on.

the integration time of Ha and OIII was roughly the same so i figured i could mix them without any normalization. also 36% of Ha into B might be a little high for Hb, perhaps i should have pulled that down a bit together with the Ha contribution to the green. the colors look sort of like what i used to get with my CLS filter so i suppose it's close.

Cloudy Nights

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	6439997
PixInsight job	BX719E45VSZHMDZ8TUXELNOTLERJP9NJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h32m16s.5
RA (top/left)	02h40m13s.5
RA (top/right)	02h40m14s.8
RA (bottom/right)	02h23m41s.0
RA (bottom/left)	02h25m06s.7

Dec (center)	+61°25′45″
Dec (top/left)	+60°09′59″
Dec (top/right)	+62°45′54″
Dec (bottom/right)	+62°39′28″
Dec (bottom/left)	+60°06′10″

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Heart Nebula bicolor

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Heart Nebula bicolor

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