Page "Moons of Saturn" Paragraph 36

| 23 || || † Iapetus || || style =" background: black ;"| alt = A walnut shaped body illuminated from the bottom-left.

The terminator runs from the top to right along the top-right limb.

An equatorial ridge runs from the left to right and is convex in the direction of the bottom-left.

Above and below it there are dark areas.

Above the upper dark area and below the lower one there are bright poles.

There numerous craters.

Three among them are very large: one sits on the limb at the right another is in the center above the ridge.

The third is below the ridge near the left limb.

|| || || || || || || || 1671 || G. Cassini