Triple Messier's (Lagoon & Trifid Nebula, M21) and more (James R Potts)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: 4 Sgr · 7 Sgr · 9 Sgr · B296 · B302 · B85 · B88 · B89 · IC 4684 · IC 4685 · LBN 25 · LBN 26 · LBN 27 · LBN 31 · LBN 34 · LDN 166 · LDN 171 · LDN 180 · LDN 210 · LDN 213 · LDN 214 · LDN 224 · LDN 230 · LDN 232 · LDN 237 · LDN 249 · Lagoon Nebula · M 20 · M 21 · M 8 · And 18 more.

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Triple Messier's (Lagoon & Trifid Nebula, M21) and more

Revision title: Revised HOO Version

Powered byPixInsight

Triple Messier's (Lagoon & Trifid Nebula, M21) and more

Revision title: Revised HOO Version

Spent 2 night capturing the Lagoon and Trifid Nebulas, plus I was excited to notice a few clusters were included in the FOV. This is an HOO image stacked in APP and edited in PS. Considering this target doesn't get much higher than 30 degrees, I am pretty happy how this turned out.

The Lagoon Nebula M8 is located in the Sagittarius-Carina spiral arm of our galaxy and is between 4,800 to 6,000 light years away. The Trifid Nebula (M20) is estimated to be 5,200 light years away and is said to be only 300,000 years old making it one of the youngest emission nebulae. M21 is a little closer than the Trifid Nebula and contains 57 stars with the brightest star being a hot class BO giant estimated to be only 4.6 million year old, making this a relatively young group.

Original
Final
B

B

Title: Revised HOO Version

Description: Adjusted the sliders in APP to pull in more of the OIII in Trifid. I really like the colors of this image, the star field is not quite as bright. Let me know which one you like better.

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Status	Advanced success
Started	...
Astrometry.net job	5892493
PixInsight job	A9BC0QG9VWFS7CGH0SWVTGC462LE9UUP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h04m29s.91
RA (top/left)	18h08m27s.25
RA (top/right)	18h10m32s.29
RA (bottom/right)	18h00m38s.95
RA (bottom/left)	17h58m19s.00

Dec (center)	-23°42′10″.2
Dec (top/left)	-25°31′53″.10
Dec (top/right)	-22°13′19″.1
Dec (bottom/right)	-21°52′08″.2
Dec (bottom/left)	-25°10′48″.1

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Triple Messier's (Lagoon & Trifid Nebula, M21) and more

Revision title: Revised HOO Version

Triple Messier's (Lagoon & Trifid Nebula, M21) and more

Revision title: Revised HOO Version

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Triple Messier's (Lagoon & Trifid Nebula, M21) and more

Revision title: Revised HOO Version

Triple Messier's (Lagoon & Trifid Nebula, M21) and more

Revision title: Revised HOO Version

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