NGC - 6820
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: 13-17/08/2007
Location: Agriturismo La Cerqua, Pietralunga, Perugia
FWHM: 1.45
Exposure Details: HaSIIHaOIII = Ha: 210min NB: 120min 2*2
Total Exposure Time: 330 min
Acquisition: MaxIm DL/CCD 4, TheSky6
Processing: MaximDL/CCD 4, Photoshop CS2