Ursa Major cluster References Ursa Major cluster astronomy Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: star cluster/ Open clusters…is the nucleus of the Ursa Major group at a distance of 65 light-years; the farthest clusters are thousands of light-years away. Read More…is the nucleus of the Ursa Major group at a distance of 65 light-years; the farthest clusters are thousands of light-years away. Read More