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• RA: 12:22.9
• Dec: +15:49
• Magnitude: 9,3
• Distance: 60,000,000 ly
• Size:  7 x 6 arc min
• Constellation:  Coma Berenices

• Scope: 8" SCT at f/10
• Autoguider:  ST-4 in faint mode
• Sky conditions:  good transparency and good seeing
• Camera: Hutech modified Canon 300D ISO1600
• Exposure:  6 x 10 minutes
• Date:  May 18, 2007

Comments:  Temperature was in the mid 30s.  Even though it was chilly for this time of year, the night was very nice. The best transparency and seeing we have had in a couple of months. M100 is one of the brightest members of the Virgo Cluster of galaxies. It was discovered on March 15, 1781 by Pierre Mechain. It is among the first spirals to be discovered. The galaxy has two prominent arms of bright blue stars and several fainter arms. Also just visible in the photo are the galaxies NGC 4328 (to the left of M100), NGC4322 (above M100), and UGC7425 (lower right of M100).