M100
 

  Crop 1.3X

0bject M 100 Spiral galaxy in Coma Berenices
Date April 5 - 8, 2014
Exposure LRGB 276:40:30:30 (cropped, 6.3 hours total)
Camera STL11000M with AstroDon Gen II filters
Telescope ASA 10N f/3.7 on AP900GTO CP3
Guiding Remote guide head with MiniBorg 50 mm
Processing MaximDL, Photoshop CS6, GradientXterminator, AstroActions, NIK Dfine
Comments Moderate to good seeing but with some moonlight; acquired with CCD Commander

 

Click on image for full resolution

0bject

M100 Spiral Galaxy in Coma Bernices
Date 3/31/2006
Exposure LRGB 120:15:15:15  (5 minute subexposures; RGB binned 2x2)
Camera ST200XM w/SBIG filters
Telescope Celestron C8 @ f/6.7 on Losmandy G11 w/Gemini
Guiding self-guided
Processing MaximDL, FITS Liberator, PhotoshopCS, AstroActions
Comments Moderate seeing and transparency, windy

                                    All text and images Gregg L. Ruppel 1998-2014.