Observatory THE SCIENCE CENTRE AT ERsTMONCEx 50th anniversary of the Lurtar Landing July 20th-21t 2019 Activity Weekend including talk and viewing evening (20th). www.THE-OBSERVATORY.ORG 01323 832731 Observatory THE SCIENCE CENTRE AT ERsTMONCEx 50th anniversary of the Lurtar Landing July 20th-21t 2019 Activity Weekend including talk and viewing evening (20th). www.THE-OBSERVATORY.ORG 01323 832731