On 15 December 1612 (os) Simon Marius, Court Mathematicus in Ansbach, became the first astronomer to record a telescopic observation of the Andromeda Nebula. The importance of this observation was that whereas other known nebulae such as the Orion Nebula, had resolved into individual stars when viewed with a telescope, the Andromeda Nebula as recorded by Marius appears as “…a weak and faint lustre at the centre with a diameter of about one quarter of a degree. A very similar luminous lustre appears when one observes a burning candle from a great distance through a translucent piece of horn” (Simon Marius, Mudus Iovialis, 1614 my translation).
In the history of astronomy the Andromeda Nebula would go on to play a central role in the deep space observations of Charles Messier (M31) and William Herschel in the eighteenth century. In the early twentieth century its nature and status then became the bone of contention in the legendary dispute between Shapley and Curtis.
2014 being the four hundredth anniversary of the publication of Marius’ major astronomical work the Mundus Iovialis we have been celebrating his live and work in Middle Franconia. First high point of the various activities were the launching of the Marius Portal, an Internet website giving researchers free access to all primary and secondary works by and about Simon Marius with navigation in almost thirty different languages.
On 20 September a one-day conference was held with contributions covering the various aspects of Marius’ life and academic work (mathematics, astrology and astronomy) in Nürnberg. The proceedings of this conference are due to appear in book, form hopefully in 2015.
This coming Wednesday, 17 December 2014, will see the founding of the Simon Marius Gesellschaft (Simon Marius Society) in Nürnberg to further research and promote his life and work. Anybody who is interested is herewith cordially invited to apply for full or corresponding membership. There are no membership fees!