Globular clusters within 25,000 light years of the center of the Milky Way. Note that the second grid (seen edge on) lying above the base grid is the actual galactic plane where the disc and spiral arms of the Milky Way live. The image of the Milky Way (the NASA/JPL-Caltech Milky Way map) seen on the lower, base grid is being projected down from the upper grid to the lower, base grid. The base grid parallels the galactic plane, and lies 19.4 thousand light years (kly) below the actual galactic plane. In the Milky Way image, the smallest circle around the Sun has a radius of 750 light years. The larger circles are spaced at 5,000 light year intervals from the Sun. Data is from the on-line 2010 update of globular cluster data, originally published in Harris, W.E. 1996, Astron J, 112, 1487.