Sussex astronomer Sir Patrick Moore has become a vice-president for the RSPCA.

He is one of a number of celebrities recruited to act as an ambassador for the animal charity.

Along with fellow vice-presidents, including the actor Simon Callow and the columnist Nigel Dempster, Sir Patrick has been asked to use his influence to promote the charity's work.

He will be invited to attend events for new campaigns for the organisation, which raises between £60 million and £80 million a year.