Bild:Uranus Final Image.jpg
Wikipedia
Storleken på denna förhandsvisning: 496 × 600 pixlar
Bilden i högre upplösning (794 × 960 pixlar, filstorlek: 21 kbyte, MIME-typ: image/jpeg)
| Denna fil tillhandahålls av Wikimedia Commons. Informationen från filens beskrivningssida följer nedan. |
Original Caption Released with Image: 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. The Voyager project is managed for NASA by the Jet Propulsion Laboratory.
[edit] Source
http://photojournal.jpl.nasa.gov/catalog/PIA00143
[edit] License
 |
This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy).
Warnings:
|
 |
,
Bildlänkar
Följande sidor länkar till denna bild:
