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Астронет: Астрономическая картинка дня Пристальный взгляд на наклонную планету http://variable-stars.ru/db/msg/1201231/eng |
Credit & Copyright: Lawrence Sromovsky,
(Univ. Wisconsin-Madison),
Keck Observatory
Explanation:
These sharp views
of tilted gas
giant Uranus show dramatic
details of the planet's atmosphere and
ring system.
The remarkable
ground-based
images were made using a
near-infrared camera and the Keck Adaptive Optics
system to reduce the blurring effects
of Earth's atmosphere.
Recorded in July, the pictures show two sides of
Uranus (careful how you
pronounce
that ...).
In both, high, white cloud features are seen mostly in
the northern (right hand) hemisphere, with medium level
cloud bands in green and lower level clouds in blue.
The artificial color scheme lends a deep reddish tint to the
otherwise faint rings.
Because of the severe tilt of its rotational axis,
seasons on Uranus are extreme and
last nearly 21 Earth years on the distant planet.
Uranus is now slowly approaching its southern autumnal
equinox - the beginning of fall in the southern
hemisphere - in 2007.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.