National Aeronautics and Space Administration Logo
Follow this link to skip to the main content NASA Banner
Solar System Exploration
Pioneer 11 Image of Saturn and its Moon Titan
Pioneer 11 Image of Saturn and its Moon Titan (click to enlarge)

Pioneer 11 Image of Saturn and its Moon Titan
Date: 26 Aug 1979

NASA's Pioneer 11 image of Saturn and its moon Titan at the upper left. The irregularities in ring silhouette and shadow are due to technical anomalies in the preliminary data later corrected. At the time this image was taken Pioneer was, at that time, 2,846,000 km (1,768,422 miles) from Saturn.

Among Pioneer 11's many discoveries are Saturn's F ring and a new moon. It recorded the planet's overall temperature at -180°C, indicating that it emits 2.5 times as much heat as it receives from the Sun. Photographs revealed a more featureless atmosphere than that of Jupiter, and calculations based on data from Pioneer 11 suggested that Saturn is primarily liquid hydrogen with a core of about 10 Earth masses.

Last Update: 11 Apr 2011 (AMB)


Awards and Recognition   Solar System Exploration Roadmap   Contact Us   Site Map   Print This Page
NASA Official: Kristen Erickson
Advisory: Dr. James Green, Director of Planetary Science
Outreach Manager: Alice Wessen
Curator/Editor: Phil Davis
Science Writers: Courtney O'Connor and Bill Dunford
Producer: Greg Baerg
Webmaster: David Martin
> NASA Science Mission Directorate
> Budgets, Strategic Plans and Accountability Reports
> Equal Employment Opportunity Data
   Posted Pursuant to the No Fear Act
> Information-Dissemination Policies and Inventories
> Freedom of Information Act
> Privacy Policy & Important Notices
> Inspector General Hotline
> Office of the Inspector General
> NASA Communications Policy
> NASA Advisory Council
> Open Government at NASA
Last Updated: 29 Feb 2012