
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.
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.