Deneb The Summer Triangle CYGNUS Vega LYRA Almost a quarter of the whole sky More toward the east in June Overhead in August Toward the west in October Looking at the sky, the stars seem to all be at the same distance. Altair SOUTH AQUILA Click anywhere to advance

Scale: one mile = one light year S C A L E M O D E L O F T H E S U M M E R T R I A N G L E Scale: one mile = one light year 1 : 6,000,000,000,000 Oshkosh Omro Redgranite Wautoma Hwy 21 Hwy 49 LAKE WINNEBAGO Deneb Vega Altair The sun At this scale, the stars themselves would be about the size of a grain of sand .01 inch Click anywhere to advance