Leo Triplet is small group of 3 galaxies. They are approximately 35 million light years from Earth. Two of them (M66 – top right and M65 bottom right) were discovered by Charles Messier already in 1780. At that time there was no light pollution, therefore these galaxies were nicely visible. Third one – NGC3628 Hamburger Galaxy (left) is dimmer, therefore was hidden till 1784. It was discovered by William Herschel and catalogued by John Louis Emil Dreyer in New General Catalogue (NGC) of deep space objects.