Saturn's Moon Rhea
Photograph
Saturn's Moon Rhea
November 11, 1980
Chromogenic development print
Image: 7 1/16 × 6 13/16 in. (18 × 17.3 cm)
Paper: 10 1/16 × 8 in. (25.5 × 20.3 cm)
Matted: 17 × 14 × 1/8 in. (43.2 × 35.6 × 0.3 cm)
Gift of NASA
Inscriptions verso (applied label, typed): PUBLIC INFORMATION OFFICE/JET PROPULSION LABORATORY/CALIFORNIA INSTITUTE OF TECHNOLOGY/NATIONAL AERONAUTICS AND SPACE ADMINISTRATION/PASADENA, CALIFORNIA, 91109. TELEPHONE: (213) 354-5011/PHOTO CAPTION TOP P-23093 C/ S-1-33/ November 12, 1980/ A color portrait of Saturn's moon Rhea was reconstructed from/ three Voyager l images taken November 11 through violet, blue/ and orange filters. Range from the spacecraft to the moon/ was about 1.7 million kilometers (one million miles), giving/ a resolution of about 30 kilometers (20 miles) on Rhea's/ surface. The color has been exaggerated somewhat to bring/ out subtle color differences between the brighter streaks/ and darker background (which is still about 50% reflective)./ This hemisphere is centered on longitude 267 ° W, that which/ trails Rhea in its orbit, and shows many wispy light markings/ on Rhea's surface. These markings are identical/ neither to simple ray crater markings nor to the grooved terrain on/ Ganymede in the Jovian system. Higher resolution pictures/ taken late on November 12 will show some of these markings/ near the terminator and should help resolve the question of/ their nature. The Voyager project is managed by the Jet/ Propulsion Laboratory for NASA.
