Although its very high orbital eccentricity means its opposition magnitude varies a lot , at a rare opposition near perihelion Bamberga can reach a magnitude of +8.0 , which is as bright as Saturn 's moon Titan . Although its very high orbital eccentricity means its opposition magnitude varies greatly , at a rare opposition near perihelion Bamberga can reach a magnitude of +8.0 , which is as bright as Saturn 's moon Titan .