Three of Saturn's icy moons are evident at left against the darkness of space. They are, in order of distance from the planet:
Tethys, 1,050 km (652 mi.) in diameter;
Dione, 1,120 km (696 mi.); and
Rhea, 1,530 km (951 mi.). The shadow of Tethys appears on Saturn's southern hemisphere. A fourth satellite,
Mimas, is less evident, visible as a bright spot against Saturn's cloud tops very near the left horizon and just below the rings, above Tethys; the shadow of Mimas appears on the planet directly above that of Tethys.
The shadow of Saturn is seen across part of the rings. The satellites all orbit Saturn in the plane defined by its rings and equator. The rings also show some enigmatic radial structure ('spokes'), particularly at left.
The NASA website hosts a large number of images from the
Soviet/
Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The
SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
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{{Information |Description ={{en|1=The disk of Saturn casts a shadow across its rings away from the sun. The satellites Mimas, Enceladus, and Tethys, seen as dots, all orbit Saturn in the plane defined by its rings and equator.}} |Source =ht...
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