Trojans: ASTEROIDS THAT DANCE WITH PLANETS p. 16 Test Report: SKY-WATCHER'S VERSATILE MOUNT p. 60 Night Vision: IS RED LIGHT REALLY BEST? p. 22 T H E E S S E N T I A L G U I D E TO A S T R O N O M Y JUNE 2016 The Great Nebula War p. 36 The ABCs of Naming Lunar Craters p. 52 Hunt for Tycho's Supernova Remnant p. 26 Tanzania Observing Adventure p. 32 Virgo Galaxies: Outside the Cluster p. 54 Visit SkyandTelescope.comhttp://www.SkyandTelescope.com