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Starcloud in Sagittarius

 

 

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Scope: Megrz II 80 mm APO at f/5.5; Location: Laguna Mountains, CA;  6 June, 2008; Camera: Canon XT 350D (Un-modified)

Exposure: 16 x 120 sec (no filters) ISO 800, 8 Darks, no Flats 

Processing: Images were captured with DSLR Focus  and saved as RAW file format. Images were decoded and dark corrected in IRIS. Images were aligned and stacked in IRIS with Sigma Median. Dark point equalization and rough color balance  was done in IRIS. Color saturation, and gamma adjustments also done in Iris. Image was saved as Tiff. Final stretching and touch up was done in PhotoShop.  Final Image size is approximately 3466x2301

North is to the right in this image. The image was taken with fairly good conditions at a dark site. This is a guided image.  This image features the high density of stars in a small portion of then Sagittarius region. A dense cloud is seen in the center of the image. There are two globular clusters (looking like fuzzy stars) toward the upper center. The top most is NGC 6528 and the lower one is NGC 6522. The bright star at the upper edge is Alnasl (HD 165135, SAO209696).  The dark patches in the image are regions of dust obscuring the starfield behind. Horizontal FOV is 178'

Object Center is approximately - Equatorial 2000: RA: 18h 02m 07s Dec: -2959'54"

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All images and content remain the property of Jim Thommes - copyright 2003 - 2012

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