Observing

See asteroid 2018 CB’s close encounter on 9 February

8 February 2018 Ade Ashford

As darkness falls over Western Europe on the evening of 9 February, near-Earth asteroid 2018 CB lies almost overhead as seen from the UK. We show you how and when to find this 30-metre-wide space rock as it speeds through the constellations of Perseus and Triangulum, passing just one-fifth of the Moon’s distance away at 22:27 UT (10:27pm GMT).