Mars' Natural Satellites


Name Diameter Mass Distance from Mars
Phobos 25 x 22 x 18 km 1.08 x 1016 kg 9,378 km
Deimos 16 x 12 x 10 km 1.8 x 1015 kg 23,459 km


The StarChild site is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC.

StarChild Authors: The StarChild Team
StarChild Graphics & Music: Acknowledgments
StarChild Project Leader: Dr. Laura A. Whitlock
Responsible NASA Official: Phil Newman

DVD Table of Contents
Educator's Index