Original: Sir William Huggins , OM , FRS ( 7 February 1824 & ndash ; 12 May 1910 ) was an English amateur astronomer best known for his pioneering work in astronomical spectroscopy .
Simplified: Sir William Huggins , ( 7 February 1824 & ndash ; 12 May 1910 ) was an English astronomer best known for his work in astronomical spectroscopy .