NGC-3521, a bright intermediate spiral galaxy located in the southern part of the constellation of Leo. It is a flocculent (loosely wound, clumpy spiral arms) galaxy, located 35 million light years from Earth. Its morphological type is SAB(rs)bc. This galaxy is inclined at an angle of 72 degrees to our line of sight. It was discovered by Sir William Herschel in 1784.
This image, acquired on April 20, 2020, 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 ASI071 MC 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.