Georg Friedrich Wilhelm Rümker (December 31, 1832 – March 3, 1900) was a German astronomer.
When the Geographic Society in Hamburg was founded in 1873 he was appointed as second secretary.
[2] His wife, Mary Hannah Crockford (1809–1889) was also an astronomer, known for her discovery of a comet in 1847 (which was observed slightly earlier by american astronomer Maria Mitchell).
[3][4] From 1884 he was the Hamburg delegate for the International Earth Measurement.
This article about a German astronomer is a stub.