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Constellation: Sagittarius
Distance: 5800 light years (M8); 5500-9000 light years (M20).
The Lagoon Nebula (M8, to the right in the above image) gets its name from the dark dust lane that divides it like a black lagoon. It is a bright H II emission nebula excited by massive O type stars in the star cluster contained within (NGC 6530).
The Trifid Nebula consists of an H II emission nebula measuring 30 light years across and excited by an O type star at its center. It gets its name from the trilobed appearance. The adjacent blue reflection nebula is illuminated by a separate F type supergiant star. The Trifid is an incubator of very early stars and protostars. (Information from A Year in the Life of the Universe by Robert Gendler, and The 100 Best Astrophotography Targets by Ruben Kier).
Acquisition Data:
7/7/2019, North Branch NY
Camera: ZWO ASI071 Pro, 49 X 180 seconds
Telescope: Stellarvue SVX080T (FL 480 mm)
Mount: Paramount MX
Acquisition: TheSkyX, unguided
Processing: PixInsight
A close up of the Trifid from 2010:
A close up of the Trifid from 2010:
Acquisition Data:
7/11 and 7/14 2010, North Branch, NY
Canon 500D (t1i), modified, ISO 800
28 X 8 minutes
AstroTech RC-8
Guided with Starlight Lodestar and PHD guiding
Processed with Images Plus and Photoshop
This image was significantly degraded by electronic noise due to leaving the camera's LiveView on during acquisition.
An effort from 7/23/2006:
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