Gustav Spörer

Friederich Wilhelm Gustav Spörer (23 October 1822 – 7 July 1895) was a German astronomer.

Carrington is generally credited with discovering Spörer's law, which governs the variation of sunspot latitudes during the course of a solar cycle.

Spörer added to Carrington's observations of sunspot drift and is sometimes credited with the discovery.

December 1843 with a work on a comet of 1723 – his supervisor being Johann Franz Encke.

In 1885 he was awarded the Valz Prize from the French Academy of Sciences for his work on sunspots.