PIA00143: Uranus - Final Image


Uranus - Final Image

Caption:

This view of Uranus was recorded by Voyager 2 on Jan 25, 1986, as the spacecraft left the planet behind and set forth on the cruise to Neptune Voyager was 1 million kilometers (about 600,000 miles) from Uranus when it acquired this wide-angle view. The picture -- a color composite of blue, green and orange frames -- has a resolution of 140 km (90 mi). The thin crescent of Uranus is seen here at an angle of 153 degrees between the spacecraft, the planet and the Sun. Even at this extreme angle, Uranus retains the pale blue-green color seen by ground-based astronomers and recorded by Voyager during its historic encounter. This color results from the presence of methane in Uranus' atmosphere; the gas absorbs red wavelengths of light, leaving the predominant hue seen here. The tendency for the crescent to become white at the extreme edge is caused by the presence of a high-altitude haze Voyager 2 -- having encountered Jupiter in 1979, Saturn in 1981 and Uranus in 1986 -- will proceed on its journey to Neptune. Closest approach is scheduled for Aug 24, 1989.

Background Info:

The Voyager project is managed for NASA by the Jet Propulsion Laboratory.

Cataloging Keywords:

Name Value Additional Values
Target Uranus Jupiter, Neptune, Saturn, Sun
System Uranus Jupiter, Neptune, Saturn
Target Type Planet Sun
Mission Voyager
Instrument Host Voyager 2
Host Type Flyby Spacecraft
Instrument Imaging Science Subsystem (ISS)
Detector Wide Angle Camera
Extra Keywords Atmosphere, Color, Haze, Methane, Visual
Acquisition Date
Release Date 1996-01-29
Date in Caption 1986-01-25 1989-08-24
Image Credit NASA/JPL
Source photojournal.jpl.nasa.gov/catalog/PIA00143
Identifier PIA00143