Cosmic Impressions by Glenn Schaeffer

M51 /  NGC 5194 - The Whirlpool Galaxy



M51

Description:

This is the famous Whirlpool galaxy M51 / NGC 5194.  This was one of the first galaxies that knocked my socks off when I first observed this with my 20" Obsession scope at a dark sight.  This galaxy is located about 37 million light years away.  It is located just off the handle of the Big Dipper in the constellation Canes Venatici.

Photographic Details:

Date & Location: March 20th, 2009, 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 XS DSLR (self-modified), Canon's own capture software.
Filters: None
Conditions: Temp 54F, Humidity 29%, Winds calm, Transparency 8/10, Seeing 8/10.
Exposures: 17 x 120sec @ 1600 ISO Sub Frames, 9 Darks average combined for master dark.
Post-processing: 3904x2900 Raw files converted to Lossless 16-bit FITS, calibrated, aligned, and combined with ImagePlus 3.75. Final processing Adobe Photoshop CS.



                          

Images Copyright 1999-2010 by Glenn Schaeffer