Andrew Claude de la Cherois Crommelin

Andrew Claude de la Cherois Crommelin (6 February 1865 – 20 September 1939) was an astronomer of French and Huguenot descent who was born in Cushendun, County Antrim, Ireland.

After a spell teaching at Lancing College he found permanent employment at the Royal Greenwich Observatory in 1891.

[8] In 1910 for their studies of Halley’s Comet Crommelin and Philip Herbert Cowell jointly received the Prix Jules Janssen from the Société astronomique de France.

In 1937 Crommelin and Mary Proctor jointly published a book entitled "Comets: Their Nature, Origin, and Place in the Science of Astronomy”.

[21] The results from these observations were crucial in providing confirmation of the General Theory of Relativity, which Albert Einstein had proposed in 1916.