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William Crabtree blue plaque

Blue plaque

What is recorded here

This blue commemorative plaque records: William Crabtree 1610-1644 The Salford Astronomer. In this area stood the house of William Crabtree from where he observed the Transit of Venus on Sunday 24 Nov. 1639
William Crabtree was a self-taught English astronomer who, along with Jeremiah Horrocks, independently and simultaneously observed the transit of Venus in 1639, providing critical data for understanding solar system dimensions.

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