Fig12_5 Structure of our stellar system

Fig12_5 Structure of our stellar system

Fig. 12.5 . This drawing depicts our Milky Way as viewed from above its plane. The stars and interstellar material are concentrated within spiral arms. The Sun lies within one of these spiral arms at a distance of 27,700 light-years, from the center, designated here as 8,500 parsecs or 8.5 kpc. This distance is 1.75 billion times the distance between the Earth and the Sun.

Copyright 2010, Professor Kenneth R. Lang, Tufts University