ファイル:Video-FlightOverDwarfPlanetCeres-20160129.WebM

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Video-FlightOverDwarfPlanetCeres-20160129.WebM(WebM 音声/動画ファイル、VP8/Vorbis、長さ 3分 44秒、640 × 360 ピクセル、全体で 668kbps、ファイルサイズ: 17.8メガバイト)

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解説
English: NASA News - released January 29, 2016

http://dawn.jpl.nasa.gov/news/news-detail.html?id=4836

New Animation Takes a Colorful Flight Over Ceres Flight Over Ceres

ANIMATION CAPTION:

Simulated view of Dwarf planet Ceres using images from NASA's Dawn spacecraft.

A colorful new animation shows a simulated flight over the surface of dwarf planet Ceres, based on images from NASA's Dawn spacecraft.

The movie shows Ceres in enhanced color, which helps to highlight subtle differences in the appearance of surface materials. Scientists believe areas with shades of blue contain younger, fresher material, including flows, pits and cracks.

The animated flight over Ceres emphasizes the most prominent craters, such as Occator, and the tall, conical mountain Ahuna Mons. Features on Ceres are named for earthly agricultural spirits, deities and festivals.

The movie was produced by members of Dawn's framing camera team at the German Aerospace Center, DLR, using images from Dawn's high-altitude mapping orbit. During that phase of the mission, which lasted from August to October 2015, the spacecraft circled Ceres at an altitude of about 900 miles (1,450 kilometers).

"The simulated overflight shows the wide range of crater shapes that we have encountered on Ceres. The viewer can observe the sheer walls of the crater Occator, and also Dantu and Yalode, where the craters are a lot flatter," said Ralf Jaumann, a Dawn mission scientist at DLR.

Dawn is the first mission to visit Ceres, the largest object in the main asteroid belt between Mars and Jupiter. After orbiting asteroid Vesta for 14 months in 2011 and 2012, Dawn arrived at Ceres in March 2015. The spacecraft is currently in its final and lowest mapping orbit, at about 240 miles (385 kilometers) from the surface.

Dawn's mission is managed by the Jet Propulsion Laboratory for NASA's Science Mission Directorate in Washington. Dawn is a project of the directorate's Discovery Program, managed by NASA's Marshall Space Flight Center in Huntsville, Alabama. UCLA is responsible for overall Dawn mission science. Orbital ATK Inc., in Dulles, Virginia, designed and built the spacecraft. The German Aerospace Center, Max Planck Institute for Solar System Research, Italian Space Agency and Italian National Astrophysical Institute are international partners on the mission team. For a complete list of mission participants, visit:

Guess what the bright spots are

http://dawn.jpl.nasa.gov/mission

More information about Dawn is available at the following sites:

http://dawn.jpl.nasa.gov

http://www.nasa.gov/dawn

-

PIA20019: Flight Over Ceres - released January 29, 2016

http://photojournal.jpl.nasa.gov/catalog/PIA20019

This frame from a simulated flight of NASA's Dawn over Ceres which emphasizes the most prominent craters, as well as the mountain Ahuna Mons.

This simulated flight over Ceres emphasizes the most prominent craters, as well as the mountain Ahuna Mons. The movie shows Ceres in enhanced color, which helps to make visible subtle differences in the appearance of surface materials.

The movie was produced using images from Dawn's high-altitude mapping orbit. During that phase of the mission, which lasted from August to October 2015, the spacecraft orbited Ceres at an altitude of about 900 miles (1,450 kilometers).

Brownish surfaces indicate a surface layer rich in phyllosilicates, which are a typical mineral found in clays. Dawn scientists think the bluish features indicate areas with younger, fresher material including flows, pits and cracks. Bright deposits mark the youngest areas on Ceres, which may contain salts.

Dawn was the first mission to visit a dwarf planet, and the first mission outside the Earth-moon system to orbit two distinct solar system targets. After orbiting Vesta for 14 months in 2011 and 2012, it arrived at Ceres on March 6, 2015.

Dawn's mission is managed by JPL for NASA's Science Mission Directorate in Washington. Dawn is a project of the directorate's Discovery Program, managed by NASA's Marshall Space Flight Center in Huntsville, Alabama. UCLA is responsible for overall Dawn mission science. Orbital ATK, Inc., in Dulles, Virginia, designed and built the spacecraft. The German Aerospace Center, the Max Planck Institute for Solar System Research, the Italian Space Agency and the Italian National Astrophysical Institute are international partners on the mission team. For a complete list of acknowledgments, see http://dawn.jpl.nasa.gov/mission.

For more information about the Dawn mission, visit http://dawn.jpl.nasa.gov.
日付
原典 YouTube: Flight Over Dwarf Planet Ceres – アーカイブについては archive.org 又は archive.today 参照。
作者 NASA Jet Propulsion Laboratory

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