Photo No.: H96-15
April 24, 1996
Hubble Captures Detailed Image of Uranus' Atmosphere
Hubble Space Telescope has peered deep into Uranus' atmosphere to see
clear and hazy layers created by a mixture of gases. Using infrared
filters, Hubble captured detailed features of three layers of Uranus'
Hubble's images are different from the ones taken by the Voyager 2
spacecraft, which flew by Uranus 10 years ago. Those images - not
taken in infrared light - showed a greenish-blue disk with very little
The infrared image allows astronomers to probe the structure of Uranus'
atmosphere, which consists of mostly hydrogen with traces of methane.
The red around the planet's edge represents a very thin haze at a high
altitude. The haze is so thin that it can only be seen by looking at
the edges of the disk, and is similar to looking at the edge of a soap
bubble. The yellow near the bottom of Uranus is another hazy layer.
The deepest layer, the blue near the top of Uranus, shows a clearer
Image processing has been used to brighten the rings around Uranus so
that astronomers can study their structure. In reality, the rings are
as dark as black lava or charcoal.
This false color picture was assembled from several exposures taken
July 3, 1995 by the Wide Field Planetary Camera-2.
Credit: Erich Karkoschka (University of Arizona Lunar & Planetary Lab)