how was william parsons (lord rosse) in 1845 able to see spiral structure in some nebulae, whereas others had not noticed this spiral structure before?

William parsons (lord rose) 1845 was able to see spiral structures in some nebulae, whereas others had not noticed this spiral structure before, using his 72-inch-diameter telescope was the largest in the world.A telescope is a device that astronomers use to see faraway objects. most telescopes, and all big telescopes, paintings via the usage of curved mirrors to gather and focus light from the night sky. the first telescopes targeted light by using portions of curved, clear glass, known as lenses.Telescope, a tool used to shape magnified images of remote objects. The telescope is undoubtedly the most essential investigative device in astronomy. It gives a way of accumulating and analyzing radiation from celestial items, even those within the ways reaches of the universe.William Parsons (1800-1867) became famed for his achievements in astronomy. within the 1840s he built the 54ft long Leviathan telescope, at the time the most important of its type inside the globe. The telescope now forms a part of the exhibitions at Birr castle historical science Centre.Learn more about telescope here:-https://brainly.com/question/12818287#SPJ4