M13
(NGC 6205)

Object Information:                   M13 (NGC 6205), Hercules Cluster
                                                 Mag. - 5.9
                                                 Constellation - Hercules
                                                 Location - R.A. 16:41.7,  Dec. +36.28
                                                 Distance -   26,000 light years,
                                                 Size -  100 light years across with more than 500,000 individual stars,
                                                 Age - 14 billion years,

Imaged at:                                 Orange County Astronomers observing site near Anza, Riverside County, California,
                                                 Elevation - 4400 feet

Equipment:                                Optics - Celestron C-11 at f/3.3
                                                 Mount - Losmandy G-11,
                                                 Camera - Santa Barbara Instrument Group (SBIG) ST-7  CCD,
                                                 Focal Reducer/Field Flattener - Optec 0.33,

Exposure Information:               March 14, 1999 at 02:30 Pacific Daylight Time
                                                 Single exposure 10 minutes,
                                                 High Resolution Mode (unbinned pixels @ 2.0 x 2.0 ^ sec.),

Field of View:                           26 x  17 ^ minutes

Image Acquisition Software:     SBIG CCDOps for DOS utilizing self guiding feature,

Image Processing Software:      SBIG CCDOps DOS - Dark field subtraction, flat field, sharpening.  Photoshop 5.0 - Final adjustment of levels and contrast, conversion to JPEG format.

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All the images in this site are © Copyright 1999 by Dean Jacobsen.
Any use of these images without the prior written consent or knowledge of the author is strictly prohibited.
Contact Dean at dean@astrophoto.net  for more information.