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OBJECT M51 - Whirlpool Galaxy                                        (click image for full-scale)
Telescope Celestron 8" SCT CF XLT @ f/6.3
Mount Takahashi EM200 Temma II
Camera SXV-H9C
Guider SXV Guider on WO ZS66SD + 3X barlow
Settings 5x7min, 26x5min, 4x4min, AstroArt3, PixInsightLE, PS7  (image slightly cropped)
Date/Location 12 April 2008 - Las Cruces, NM  (a reprocess done on 30 May 2011 is here)

Copyright  Jeffrey O. Johnson

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