NGC - 7023 Iris Nebula Image by Massimiliano Baravelli Optics: 140 mm f/7 TEC 140APO Refractor Guide: 105 mm f5,8 Astro-Physics Traveler Refractor Mount: Astro-Physics GTO900 Camera: SBIG ST10XME Guide: SBIG ST-402 Filter Wheel: SBIG CFW-10 Filters: AstroDon LRGB set + Ha-SII-OIII set Dates/Times: 14-15/08/2007 Location: Agriturismo La Cerqua, Pietralunga, Perugia FWHM: 1.23 Exposure Details: LRGB = L: 303min RGB: 286min 2*2 Total Exposure Time: 589 min Acquisition: MaxIm DL/CCD 4, TheSky6 Processing: MaximDL/CCD 4, Photoshop CS2
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