Dr Ralph Copeland FRSE FRAS (3 September 1837 – 27 October 1905) was an English astronomer and the third Astronomer Royal for Scotland.
Copeland was born at Moorside Farm, near Woodplumpton in Lancashire, England the son of Robert Copeland, yeoman, and his wife, Elizabeth Milner, and attended Kirkham Grammar School. He spent five years in Australia where he discovered his interest in astronomy. He returned in 1858 to pursue a career in engineering.
Eager to pursue his astronomical interests, Copeland built a small observatory, gave up engineering, and then travelled to Germany to study astronomy at the University of Göttingen. When he returned to England, as a patron of Lord Rosse, Copeland brought back German methods of astronomy. Later he appointed many German astronomers as assistants, such as Oswald Lohse.
Copeland then worked at the Dun Echt Observatory owned by the 26th Earl of Crawford. Copeland was a frequent traveler on worldwide expeditions and observed the 1874 and 1882 transits of Venus from Mauritius and Jamaica, respectively, and undertook other astronomical observations from Greenland.
On 29 January 1889, Copeland became Astronomer Royal for Scotland, whereupon he first worked at the Calton Hill Observatory, Edinburgh. He was tasked to select a site for a new observatory, eventually choosing Blackford Hill, Edinburgh. Lord Crawford, his former benefactor, donated the astronomical collection from Dun Echt to the new site, which was opened in 1896.