The Bubble Nebula
Constellation: Cassiopeia
Telescope: Explore Scientific 127ED refractor
Camera: QSI 683 wsg
Mount: Paramount MX+
Filter: AstroDon 3nm Hydrogen-alpha filter
Acquisition Date: June 18, 2015
Location: Ball Ground, GA
Exposure Details: 9 - 15-minute subexposures
Total Exposure Time: 2.25 hours
Acquisition Software: The SkyX Professional, Maxim DL
Processing Software: CCDStack, Gradient Xterminator, Photoshop