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 M51 - A game of Light and Color 
 
Preface: This project was carried out with my friend Massimo Tosco, color from RC has made natural and lively colors.
Optics:
  • Pentax 75 SDHF F/6.7 500mm. - APO Refractor [Luminance]

  • GSO RC 8" F/8 1624mm. - Astrograph Ritchie-Chrétien [Color]
  • Mount:
  • HEQ5 Pro

  • AP MACH1 GTO
  • Camera:
  • ATIK 314L+ with ATIK USB Filter Wheel [Luminance]

  • ATIK 4000LE with Starlight USB Filter Wheel [Color]
  • Filters:
  • Astronomik LRGB Type II [Luminance]
  • Baader RGB [Color]
  • Guiding Systems: ATIK 16IC on Scopos 80 Achromatic @ F6 480mm.
    Dates/Times: 22 January 2010 - 6/12/20 February 2010 - 12 March 2010
    Location: Porliod - Pragelato - Colle Vaccera - Alps - Italy
    Exposure Details: L:R:G:B => 400:74:60:88
    Cooling Details: -25 °C
    Acquisition: Maxim DL/CCD, Perseus
    Processing: DSS, Maxim DL/CCD, PS CS3