The Horsehead Nebula
Constellation: Orionbr/Telescope: Celestron 8-inch EdgeHD SCTbr/Camera: QSI 583wsbr/Mount: Takahashi EM-200br/Filters: AstroDon 3nm Hydrogen-alpha filter; AstroDon RGB filtersbr/Acquisition Dates: October 4, 10, 11 and 12, 2013br/Location: Ball Ground, GAbr/Exposure Details: Hydrogen-alpha filter = 15 - 20-minute subexposuresbr/RGB filters = 9 - 10-minute subexposures through each filterbr/Total Exposure Time: 15.5 hoursbr/Acquisition Software: The SkyX; Maxim DLbr/Processing Software: CCDStack, Registar, Photoshop