Wednesday 6 September 2023

Mauritius , a Transit of Mercury in 1907 and a Cooke telescope

 The transit of Mercury was observed on November 14th 1907 from the Royal Alfred Observatory in Mauritius using a Cooke 6 inch refractor. The transit which was seen through a partly cloudy sky and the limb of the Sun was described as being boiling. Mercury appeared as a clear cut black disc, perfectly circular with no spot or fringe.

There were 11 photographs taken during the transit with the 6 inch Cooke. The telescope had ben supplied to Mauritius by the colonial government in1874 in order to observe the transit of Venus.




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