Lagoon Nebula M8 and Trifid Nebula M20

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celeron787
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Joined: Sun Jan 12, 2020 2:30 pm

Lagoon Nebula M8 and Trifid Nebula M20

Post by celeron787 »

My attempt at another region of the milky way after some encouraging results from M22 and M25 with only about 4mins of integration time. The Lagoon and Trifid Nebulae frames up very nicely with a 135mm focal length. I aimed for about an hour of integration time hoping to bring out the nebulosity of both nebulae. Hints of both nebulae can be seen on a single 15sec sub. Managed to get it done before the bright moon appeared.

View plate-solved version here: http://nova.astrometry.net/annotated_full/4445610

The Lagoon Nebula (M8) is an emission nebula in the constellation Sagittarius. Located 5,200 light-years from Earth, M8 is home to its own star cluster: NGC 6530. The massive stars embedded within the nebula give off enormous amounts of ultraviolet radiation, ionizing the gas and causing it to shine.

The Trifid Nebula (M20) is also located in Sagittarius. Its name means 'divided into three lobes'. The object is an unusual combination of an open cluster of stars; an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula that cause the trifurcated appearance.

Side note - Managed to get a shot of andromeda, but post-processing kinda failed miserably. Probably due to it being too low and too much harsh gradients.

Sony A6000
Samyang 135mm F2.0
Sky-Watcher Star Adventurer
Tripod

Bortle 8
ISO400
Light frames - 360 x 15secs
Dark Frames - 30 x 15secs
Flat Frames - 35
Bias Frames - 50

Deep Sky Stacker
StarTools - 50% Bin, Autodev, Crop, Wipe, Life, Decon, Color, Defringe filter

Image

hhzhang
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Favourite scope: 115mm APO

Re: Lagoon Nebula M8 and Trifid Nebula M20

Post by hhzhang »

Our dear galactic centre region. Amazing shot from the poor light pollution situation here.

celeron787
Posts: 71
Joined: Sun Jan 12, 2020 2:30 pm

Re: Lagoon Nebula M8 and Trifid Nebula M20

Post by celeron787 »

Thanks! I'm very happy with how the image turned out.
My other image of the rho ophiuchi however was a disaster lol

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Airconvent
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Re: Lagoon Nebula M8 and Trifid Nebula M20

Post by Airconvent »

Lots of details.. thanks for sharing :)
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rifleman175
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Favourite scope: Celestron C8 EdgeHD

Re: Lagoon Nebula M8 and Trifid Nebula M20

Post by rifleman175 »

Great wide field shot with plenty of details!

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