The known 157 globular clusters of the Milky Way. Note that the second grid 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 302 thousand light years (kly) below the actual galactic plane. The outermost globular clusters — those farthest from the galactic center — are labeled. The positions of the Sun and the galactic center (Sagittarius A*) are marked with the white lines projecting up from the base grid. Data is from the on-line 2010 update of globular cluster data, originally published in Harris, W.E. 1996, Astron J, 112, 1487.