The image is a rendering of a 3D-tour through a set of 100 star locations.
The stars are colored in tour order; the hue of each point represents its position in the tour.
The image is interactive. With a mouse you can zoom in and out with the scroll wheel (or on a touchpad with the scroll gesture), orbit by moving the mouse with the left button pressed, and pan by moving with the right button pressed.
On a phone or tablet, zoom by pinching, orbit with a one-finger swipe, and pan with a three-finger swipe.
Click "Open Controls" at the top of the image to display a menu to turn on or off the star labels, hide the tour line, and zoom in or out.