BZ Cam Bow Shock . ... WIYN , NOAO , MURST , NSF Explanation: BZ Cam is a binary star system that is not well understood. ... In BZ Cam , however, light appears to flicker unpredictably, and an unusually large wind of particles is being expelled. Pictured above , BZ Cam 's wind creates a large bow-shock as the system moves through surrounding interstellar gas . BZ Cam lies about 2500 light-years away toward the constellation of Camelopardalis . ... NASA Official: Jay Norris. ...