The known 157 globular clusters of the Milky Way. Note that the second grid lying above the base grid is the actual plane where the disc and spiral arms of the Milky Way live. The image of the Milky Way seen on the lower, base grid is being projected down from the upper grid to the lower, base grid. The outermost globular clusters — those farthest from the galactic center — are labeled. Data is from the on-line 2010 update of globular cluster data, originally published in Harris, W.E. 1996, Astron J, 112, 1487.