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Uploaded 30-Jul-11
Taken 3-Jul-11
Visitors 91

19 of 44 photos
Categories & Keywords

Subcategory:Night Sky
Subcategory Detail:
Keywords:Cluster, Globular, M28
Photo Info

Dimensions3600 x 2400
Original file size3.88 MB
Image typeJPEG
Color spaceUncalibrated
Date taken3-Jul-11 21:54
Date modified30-Jul-11 14:27
Shooting Conditions

Camera makeCanon
Camera model40D Modified
ISO speedISO 1600
Messier 28 Globular Cluster in Sagittarius

Messier 28 Globular Cluster in Sagittarius

About this Object:
Messier 28 (also known as M28 or NGC 6626) is a globular cluster in the constellation Sagittarius. It was discovered by Charles Messier in 1764. In the sky it is very close to the 3rd magnitude star Kaus Borealis. M28 is at a distance of about 18,000 to 19,000 light-years away from Earth.

About this Photo:
Date(s): July 3, 2011
Location: From my driveway in Georgetown, Texas
Telescope: Celestron C9.25 @ F6.3
Mount: CGEM
Guiding: Orion StarShoot AutoGuider / Taurus Tracker III OAG
Camera: Canon 40D Modified
Exposure: 6 x 120s @ ISO1600 (12 Min total)
Acquisition: ImagesPlus 3.75 Camera Control
Processing: ImagesPlus 3.75 – Darks,Flats,Bias
Post-processing: Adobe Photoshop CS3; Gradient Exterminator; Noise Ninja; Noel Carboni's Tools
Temperature(s): 85º F