NGC 1566 is a spiral galaxy in Dorado, about 70 million light years away. There is probably a supermassive black hole at the center. Its common moniker is the “Spanish Dancer Galaxy”.
Technical details are as follows:
Imaged by SSRO at CTIO/PROMPT/CTIO in 2014 using an RCOS 16″ RC @ f/11.3 and Apogee U9 on a Planewave 200HR. Additional data was also obtained in 2010 and 2015. Image scale 0.41″/pixel. LRGB with 16 hours Lum, and 8 hours/channel RGB. Calibration was in Maxim, alignment/integration and deconvolution in PixInsight, and the remainder in Photoshop. Processing was challenging due to numerous column defects on the CCD sensor, and bad flat field frames.