Phobos - Viking 1 Orbiter
Mars' moon Phobos and Stickney crater from 1600 km
Viking 1 Orbiter global view of the Martian satellite
Phobos. The 10 km diameter Stickney crater is at the
left, centered at 5 S, 55 W. The Mars facing point is
at the bottom center of Phobos, and the north pole is
at about 1:00 from this point. Radiating grooves and
crater chains can be seen around Stickney. Phobos is
roughly 20 km across in this image.
(Viking Orbiter 357A64)
Phobes
Satellites, Natural
Viking Missions