M33 LRGB with 26 hours of OIII and Ha (Kevin Morefield)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: IC 131 · IC 132 · IC 133 · IC 135 · IC 136 · IC 137 · IC 142 · IC 143 · M 33 · NGC 588 · NGC 592 · NGC 595 · NGC 598 · NGC 604 · Triangulum galaxy

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M33 LRGB with 26 hours of OIII and Ha

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M33 LRGB with 26 hours of OIII and Ha

I find the OIII rich nebulae to be the most interesting thing here. I wonder how many other galaxies would benefit by OIII data?

This image is an odd amalgamation of data from the 2016 and 2017 seasons. In 2016 I had shot quite a bit of LRGB binned 2x2 and unguided due to some guide camera issues. I added more bin 1x1 guided RGB data in November. All of the LRGB data is 300 seconds. I then started shooting Ha. Since I thought of the Ha only enhancing red color data I shot that bin 2x2 at 900 seconds. Seeing so much nebula structure I thought some OIII could help and added OIII 2x2 at 900 seconds. (see my other narrowband only post on this)

I now have 260 LRGB subs and 105 Narrowband subs with a total integration time of 46 hours. Non of the Luminance is 1x1 binned! So I guess next year I work on that....

The brightest nebulae are on the edge of saturated in Ha. I guess that's for next year too.

The Ha and OIII were added as layers in PS with a lighten blending. Ha was colored Magenta and OIII blue.

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Status	Advanced success
Started	...
Astrometry.net job	1877445
PixInsight job	ZWXHSCVX5DDWV4NQLVTVJOVUYPK3BCZI
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h33m47s.85
RA (top/left)	01h33m38s.70
RA (top/right)	01h31m31s.20
RA (bottom/right)	01h33m56s.83
RA (bottom/left)	01h36m04s.91

Dec (center)	+30°39′56″.9
Dec (top/left)	+31°10′43″.6
Dec (top/right)	+30°30′34″.8
Dec (bottom/right)	+30°09′09″.4
Dec (bottom/left)	+30°49′10″.1

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M33 LRGB with 26 hours of OIII and Ha

M33 LRGB with 26 hours of OIII and Ha

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M33 LRGB with 26 hours of OIII and Ha

M33 LRGB with 26 hours of OIII and Ha

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