Robert Emden
Jacob Robert Emden ( 4 March 1862 – 8 October 1940 ) was a Swiss astrophysicist and meteorologist . 
<triplet> Robert Emden <subj> 4 March 1862 <obj> date of birth <subj> 8 October 1940 <obj> date of death <subj> astrophysicist <obj> field of work