Helene a trojan moon.
Posted: Sat Jul 21, 2007 4:01 pm
An odd shaped moon.
Cassini-Huygens mission, N00086688.jpg
"Helene (32 kilometers, or 20 miles across) orbits 60 degrees ahead of Dione in the larger moon's orbit, making it a "trojan" moon of Dione."
Planetary Photojournal, PIA08335: Helene
Cassini-Huygens mission, N00086688.jpg
"Helene (32 kilometers, or 20 miles across) orbits 60 degrees ahead of Dione in the larger moon's orbit, making it a "trojan" moon of Dione."
Planetary Photojournal, PIA08335: Helene