M8 Lagoon Nebula and Surrounding Hydrogen Cloud SHO Hubble Palette RASA8 (Brandon Tackett)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: 7 Sgr · 9 Sgr · B296 · B302 · B303 · B88 · B89 · B91 · IC 1274 · IC 1275 · IC 4685 · LBN 25 · LBN 26 · LBN 28 · LBN 29 · LBN 33 · LDN 166 · LDN 171 · LDN 180 · LDN 196 · LDN 200 · LDN 210 · LDN 211 · LDN 213 · LDN 214 · LDN 224 · LDN 227 · Lagoon Nebula · M 8 · NGC 6523 · And 12 more.

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M8 Lagoon Nebula and Surrounding Hydrogen Cloud SHO Hubble Palette RASA8

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M8 Lagoon Nebula and Surrounding Hydrogen Cloud SHO Hubble Palette RASA8

I became distracted with other targets during Milky Way Season (shark, Lion, Pelican, North America, Iris, and Tulip) that I neglected on getting to the Lagoon Nebula until late in the season. M8 only gets 26 degree above my southern horizon, so I spent 1-2 hrs right at true dark for the 3 weeks with clear nights capture OSC and SHO data.

My goal was to capture all the surrounding nebulosity to the east of the Lagoon with IC 4648 and NGC 6559 as well as the starfish globular cluster in the bottom left. I had previously framed the lagoon with the trifid, but I enjoyed this framing better.

I wanted to capture all the hydrogen emission nebula, but not blow out the core. I used HDR composition to combining the 60 seconds subs with the 300s subs with mostly the desired effect in the Ha and O3 layers.

This image also is my 2nd attempt at a small star elimination technique that I devised, but in SHO with I find to be much better results. See my OSC+Ha for more explanation.

I am curious what people think of this method? I would welcome feedback feedback for and against. the technique.

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Description: Darker Blue

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Status	Advanced success
Started	...
Astrometry.net job	4986481
PixInsight job	LF2BW0EP09O071ZHZYTWZYT1Z96GXMRY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h05m56s.43
RA (top/left)	18h11m05s.26
RA (top/right)	18h01m05s.56
RA (bottom/right)	18h00m43s.81
RA (bottom/left)	18h10m51s.58

Dec (center)	-24°19′58″.5
Dec (top/left)	-23°29′05″.4
Dec (top/right)	-23°24′05″.8
Dec (bottom/right)	-25°10′09″.2
Dec (bottom/left)	-25°15′26″.1

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M8 Lagoon Nebula and Surrounding Hydrogen Cloud SHO Hubble Palette RASA8

M8 Lagoon Nebula and Surrounding Hydrogen Cloud SHO Hubble Palette RASA8

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M8 Lagoon Nebula and Surrounding Hydrogen Cloud SHO Hubble Palette RASA8

M8 Lagoon Nebula and Surrounding Hydrogen Cloud SHO Hubble Palette RASA8

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