
Object Information:
NGC 253
Mag. - 7.1
Constellation - Sculptor
Location - R.A. 00:47.6, Dec. -25.17
Distance - 11 million light years,
Size - 40,000 light years across
Imaged at:
Observatory Campground, Palomar Mountain, San Diego County, California,
Elevation - 4800 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,
Filter - #12 pale yellow
Exposure Information:
October 14, 1999 at 00:06 Pacific Daylight Time
1800 second self guided exposure,
High Resolution Mode (unbinned pixels @ 2.0 x 2.0 ^ sec.),
Field of View: 26 x 17 ^ minutes
Image Acquisition Software: MaxIm DL CCD utilizing the ST-7's self guiding feature,
Image Processing Software: MaxIm DL - 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 deanjacobsen@adelphia.net
for more information.