Mars' Natural Satellites

Shuttle

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

Shuttle

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
Curator: J.D. Myers
Responsible NASA Official: Phil Newman
If you have comments or questions about the StarChild site, please send them to us.