Cosmic Impressions by Glenn Schaeffer

NGC 253 - The Sculptor Galaxy



NGC253

Description:

The Sculptor Galaxy, also known as NGC 253 or Silver Coin Galaxy, is an example of an edgewise intermediate spiral galaxy in the constellation Sculptor.  The Sculptor Galaxy is known as a starbust galaxy, which means that it is currently undergoing a period of intense star formation.  At 8.0 magnitude, this is one of the brightest galaxies in the sky.  The Sculptor Galaxy is viewable through small telescopes and even through binoculars.

Photographic Details:

Date & Location: October 23rd, 2008, Fort Mckavett, Texas.
Scope: Obsession 20” f/5 on a Tom Osypowski Dual Axis Equatorial Platform, Orion 100mm f/6 Guidescope.
Autoguider: Orion Starshoot Autoguider and PHD Guider software.
Camera: Canon 20D DSLR (non-modded), homemade serial control shutter release cable and DSLR shutter from Stark Labs.
Filters: None
Conditions: Temp 41F, Humidity 29%, Winds calm, Transparency 9/10, Seeing 7/10.
Exposures: 57 x 60sec @ 3200 ISO Sub Frames, 23 Darks average combined for master dark.
Post-processing: 3504x2336 Raw files converted to Lossless 16-bit FITS, calibrated, aligned, and combined with ImagePlus software. Final processing Adobe Photoshop CS.



                          

Images Copyright 1999-2010 by Glenn Schaeffer