NGC 7424 is a barred “grand design” spiral galaxy in the constellation Grus, about 38 million light years away. With an estimated diameter of 100,00 light years, it is similar in size and structure to our own Milky Way.
Imaged by SSRO/PROMPT/CTIO in 2012 with a 16″ RCOS @ f/11.3, Apogee U9, and Planewave 200HR mount. Image scale 0.41″/pixel. LRGB with 28 hours Lum, 10 hours Red, 10 hours Green, and 12 hours Blue. Calibration in Maxim, alignment/integration in PixInsight, deconvolution in PixInsight, and everything else in Photoshop.