P-34681 Range: 870,000 kilometers (540,000 miles) This image of Neptune's irregularly-shaped satellite 1989N1 taken by Voyager 2 shows a resolution of 8 kilometers (5 miles) per pixel. The satellite has an average radius of about 200 kilometers (120 miles) and is uniformly dark with an albedo of about 6 percent. The irregular shape suggests that 1989N1 has been cold and rigid throughout its history and subject to significant impact cratering.
Photographer JPL