Figure: Milky Way spiral arms location
Various spiral arms of our Galaxy are represented on the face-on
view of the Milky Way. The position of the Sun (and the Solar system) is indicated by the
yellow dot.
Image source: click on "face-on diagram of spiral arms" in the paragraph "Associated files and images", in the following webpage:
http://www.astro.wisc.edu/goat/article/7/the-milky-way-using-real-data
original picture