The Lagoon/Trifid/Sharpless 34 Region

Emission Nebula in Sagittarius

Uploaded 6/23/03

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This dense region highlights three primary objects, from top to bottom: Sharpless 34, M20, and M8. Way to many other deep sky objects also occupy this image to describe fully, however a few highlights are in order. To the left of the Lagoon nebula at center bottom is the NGC6559 complex which includes dozens of separate objects. To the lower right is Sharpless 22 in the lower right corner. Supra does well to record the extensive blue part of the Trifid nebula M20 at center, which wraps around the red part. Dozens of dark nebula are very prominent in this image as well. LDN191 to the right of the Trifid is impressive, as well as LDN224 surrounding NGC6559 to the left. Very noticeable is the fact that the Lagoon nebula is much pinker than the surrounding nebulosity.

Processing: Two deep 8 minute frames were scanned with a Nikon LS2000 at 16 bits, converted to negative images, and stacked with multiply in Photoshop. Registration was done with Picture Window. For the core of M20 and M8, only one of the two images was used to keep the cores from burning out pure white.

Instrument: 8" f/1.5 Celestron Schmidt Camera Platform: Homemade GEM Film: Kodak Supra 400 CCD Autoguider: ST4 Exposure: 8mins x2 Filters: None Location: Happy Jack, Arizona Elevation: 6800 ft. Sky: Seeing 8/10, Transparency 9/10 Outside Temperature: 10 C Processing: Photoshop, Picture Window Pro HOME SCHMIDT GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS 


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