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Uploaded 4-Jun-11
Taken 3-Jun-11
Visitors 55


5 of 74 photos
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Categories & Keywords

Category:Scenic
Subcategory:Night Sky
Subcategory Detail:
Keywords:M5
Photo Info

Dimensions3600 x 2400
Original file size3.32 MB
Image typeJPEG
Color spaceUncalibrated
Date taken3-Jun-11 19:22
Date modified4-Jun-11 19:23
Shooting Conditions

Camera makeCanon
Camera model40D Modified
ISO speedISO 1600
Messier 5 Globular Cluster in Serpens

Messier 5 Globular Cluster in Serpens

About this Object:
Messier 5 or M5 (also designated NGC 5904) is a globular cluster in the constellation Serpens. It was discovered by Gottfried Kirch in 1702. Spanning 165 light-years in diameter, M5 is one of the larger globular clusters known. The gravitational sphere of influence of M5, (i.e. the volume of space in which stars are gravitationally bound to it rather than being torn away by the Milky Way's gravitational pull) has a radius of some 200 light-years. At 13 billion years old it, M5 is also one of the older globulars associated with the Milky Way Galaxy. Its distance is about 24,500 light-years from Earth and the cluster contains more than 100,000 stars, as many as 500,000 according to some estimates.

About this Photo:
Date(s): June 3, 2011
Location: From my driveway in Georgetown, Texas
Telescope: Celestron C9.25 @ F6.5
Mount: CGEM
Guiding: Orion StarShoot AutoGuider / Taurus Tracker III OAG
Camera: Canon 40D Modified
Filter: None
Exposure: 16 x 30s + 16 x 60s @ ISO1600 (24 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; Annie’s Astro Actions
Temperature(s): 80º F