FIG7_17 Runaway star

FIG7_17 Runaway star

Fig. 7.17 . A high-speed star slams into dense interstellar gas, creating a bow shock that may be a million, million kilometers wide. The star is thought to be relatively young, just millions of years old. Moving at a speed of about 100 km s-1, it has journeyed 160 light-years since its birth, most likely in a loosely bound stellar association. (Courtesy of NASA/ESA/R. Sahai/JPL.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University