Observing

Hunting for colourful double and triple stars in the constellation of Cassiopeia

13 December 2019 Ade Ashford

The instantly recognisable five-star M-shaped pattern of stars representing the constellation Cassiopeia (pronounced kas-ee-uh-pee-uh) lies almost overhead in the early evening as seen from the British Isles over the festive period. Cassiopeia is rich in wonderful double and multiple stars, so here’s our guide to some of the best for typical backyard telescopes.

Observing

Comet Lovejoy’s June swan song through Ursa Minor

3 June 2015 Ade Ashford

A constant feature of spring nights owing to its enviable circumpolar position, Comet Lovejoy still rides high throughout June, yet it’s fading slowly with distance and has to compete with twilight all night for observers in the British Isles — but it has one more conjunction in store for the end of the month.