PIA02263: Saturn's 15th moon, 1980S28

Saturn’s 15th moon, 1980S28


Voyager 1 has found a 15th moon orbiting Saturn, visible near the bottom of this picture taken on Nov. 6, 1980, when the spacecraft was still 8 million kilometers (5 million miles) from Saturn. Voyager imaging team scientists discovered the moon Nov. 7, 1980, in the first of several programmed searches for new satellites of Saturn. The unique location of the 15th satellite, just 800 kilometers (500 miles) outside the outer edge of the A-ring, is especially significant in that this small body, approximately 100 kilometers (50 miles) in diameter, may be responsible for defining the outer edge of Saturn's bright ring system. The orbital period of the new satellite is approximately 14 hours, 20 minutes, the shortest orbit of any of Saturn's known satellites. The very narrow F-ring, approximately 4,000 kilometers (2,500 miles) outside the outer edge of the A-ring, is seen prominently in this picture.

Background Info:

The Voyager Project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.

Cataloging Keywords:

Name Value Additional Values
Target Saturn Rings A Ring, F Ring, Saturn
System Saturn
Target Type Ring Planet
Mission Voyager
Instrument Host Voyager 1
Host Type Flyby Spacecraft
Instrument Imaging Science Subsystem (ISS)
Extra Keywords Grayscale
Acquisition Date
Release Date 2000-05-23
Date in Caption 1980-11-06 1980-11-07
Image Credit NASA/JPL
Source photojournal.jpl.nasa.gov/catalog/PIA02263
Identifier PIA02263