NGC-2903 Spiral galaxy in Leo
NGC-2903 is a bright, many armed barred spiral galaxy located in the constellation of Leo, just SSW of Lambda Leonis, the star at the tip of the "Sickle" of Leo. NGC-2903 was discovered by Sir William Herschel in 1784. It lies 30 million light years from Earth and is 100,000 light years in diameter. The morphological classification of NGC-2903 is SBbc, indicating a barred spiral with moderate to tightly wound spiral arms.
This image, acquired on January 28, 2018, is a 1 hour integration of 6 minute exposures through the Celestron C-11 at f/2, using the HyperStar III imaging system and the ZWO ASI 071MC color CMOS camera, operating at -5 degrees below ambient temperature and binned 1 X 1. Guided, captured and combined using Maxim DL5 Pro. Post processed using PhotoShop CS2, Gradient XTerminator, StarShrink, Carboni's Astro Tools and NoiseWare.