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Астронет: Астрономическая картинка дня Самое четкое изображение Ультима Туле http://variable-stars.ru/db/msg/1459743/eng |
Credit & Copyright: NASA,
Johns Hopkins University APL,
Southwest Research Institute,
National Optical Astronomy Observatory
Explanation:
On January 1, New Horizons swooped to within 3,500 kilometers of the
Kuiper
Belt world known as Ultima Thule.
That's about 3 times closer than its July 2015 closest approach to Pluto.
The spacecraft's unprecedented feat of navigational precision,
supported by data from ground and space-based observing campaigns,
was accomplished 6.6 billion kilometers (over 6 light-hours) from
planet Earth.
Six and a half minutes before closest approach to Ultima Thule it
captured the nine frames used in this composite image.
The most detailed
picture possible
of the farthest object
ever explored, the image has a resolution of about 33 meters per pixel,
revealing intriguing bright surface features and dark shadows
near the terminator.
A primitive Solar System object,
Ultima Thule's two lobes combine to span just 30 kilometers.
The larger lobe, referred to as Ultima, is
recently understood to be flattened
like a fluffy pancake, while the smaller, Thule, has a shape that
resembles a dented walnut.
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.