Sketch of M51 by Lord Rosse in 1845 What later became known as the Whirlpool Galaxy was discovered on October 13, 1773, by Charles Messier while hunting for objects that could confuse comet hunters, and was designated in Messier's catalogue as M51. [13] William Parsons, 3rd Earl of Rosse, employing a 72-inch (1.8 m) reflecting telescope at Birr Castle, Ireland, found that the Whirlpool possessed a spiral structure, the first "nebula" to be known to have one. [14] These "spiral nebulae" were ... Buy Samsung Galaxy M51 online at best price with offers in India. Samsung Galaxy M51 (Electric Blue, 128 GB) features and specifications include 8 GB RAM, 128 GB ROM, 7000 mAh battery, 64 MP back camera and MP front camera. The Samsung Galaxy M51 is a mid-range Android smartphone manufactured by Samsung Electronics as part of their M series. It was announced in late August 2020 and released the following month. The phone has a 6.7 in sAMOLED Plus display, a 64 MP quad-camera setup, and a 7000 mAh battery. Galaxy M51 with sAMOLED Plus I Mo-B gets knocked out The immersive 16.95cm (6.7”) sAMOLED Plus, Infinity-O Display of the Galaxy M51 is just too stunning for the mean Mo-B to handle.