Phobos just off Mars' limb from Phobos 2
amateur image processing,
Russian Mars missions
This view of Mars and its moon Phobos, 25 kilometers in diameter, was captured by the Phobos 2 spacecraft on February 28, 1989. Phobos 2 took a total of 13 color sets of images of Phobos before contact was lost on March 27, 1989.
Russian Academy of Sciences / Ted Stryk
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
to request publication permission from the copyright holder.
Original image data dated on or about February 28, 1989