RT @j_a_clarkson@twitter.com

Cambridge University Library @theUL@twitter.com under the stars on a bitterly cold Tuesday evening - I stayed out for five hours before I got too cold and had to go home. The bright arc in the centre is the North star, Polaris - which you can see isn't perfectly aligned with the Earth's pole

🐦🔗: https://twitter.com/j_a_clarkson/status/1616049543941947393