{"id":10809,"date":"2015-06-19T18:47:38","date_gmt":"2015-06-19T22:47:38","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=10809"},"modified":"2015-06-19T18:47:38","modified_gmt":"2015-06-19T22:47:38","slug":"first-color-animated-images-of-pluto-and-its-moon-charon","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=10809","title":{"rendered":"First color animated images of Pluto and its moon Charon"},"content":{"rendered":"

The\u00a0New Horizons<\/a>\u00a0spacecraft approaching Pluto sends some color images of Pluto and its moon Charon:<\/p>\n

First Color Animated Images Show Pluto and its Moon Charon<\/a><\/strong><\/p>\n

The first color movies from NASA\u2019s New Horizons mission show Pluto and its largest moon, Charon, and the complex orbital dance of the two bodies, known as a double planet.<\/p>\n

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\u201cIt\u2019s exciting to see Pluto and Charon in motion and in color,\u201d says New Horizons Principal Investigator Alan Stern of the Southwest Research Institute (SwRI), Boulder, Colorado. \u201cEven at this low resolution, we can see that Pluto and Charon have different colors\u2014Pluto is beige-orange, while Charon is grey. Exactly why they are so different is the subject of debate.\u201d<\/p>\n

New Horizons will make its closest approach to Pluto on July 14, zipping by about 7,800 miles (12,500 kilometers) above the surface. It\u2019s the first mission to Pluto and the Kuiper Belt, a relic of solar system formation beyond Neptune. Sending a spacecraft on this almost 3-billion mile journey will help us answer basic questions about the surface properties, atmospheres, and moons of the Pluto system.<\/p>\n

These near-true color movies were assembled from images made in three colors \u2014 blue, red and near-infrared \u2013 by the Multicolor Visible Imaging Camera on the instrument known as Ralph, a \u201cHoneymooners\u201d reference that classic TV fans can appreciate. The images were taken on nine different occasions from May 29-June 3.<\/p>\n

Although the two movies were prepared from the same images, they display the Pluto-Charon pair from different perspectives. One movie is \u201cPluto-centric\u201d, meaning that Charon is shown as it moves in relation to Pluto, which is digitally centered in the movie. (The North Pole of Pluto is at the top.) Pluto makes one turn around its axis every 6 days, 9 hours and 17.6 minutes\u2014the same amount of time that Charon rotates in its orbit. Looking closely at the images in this movie, one can detect a regular shift in Pluto\u2019s brightness\u2014due to the brighter and darker terrains on its differing faces.<\/p>\n

The second movie is barycentric, meaning that both Pluto and Charon are shown in motion around the binary\u2019s barycenter \u2013 the shared center of gravity between the two bodies as they do a planetary jig. Because Pluto is much more massive than Charon, the barycenter (marked by a small \u201cx\u201d in the movie) is much closer to Pluto than to Charon.<\/p>\n

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As New Horizons closes in its intended target, the best is yet to come. \u201cColor observations are going to get much, much better, eventually resolving the surfaces of Charon and Pluto at scales of just kilometers,\u201d said Cathy Olkin, New Horizons deputy project scientist from SwRI. \u201cThis will help us unravel the nature of their surfaces and the way volatiles transport around their surfaces. I can\u2019t wait; it\u2019s just a few weeks away!\u201d<\/p>\n

The Johns Hopkins University Applied Physics Laboratory (APL) manages the New Horizons mission for NASA\u2019s Science Mission Directorate in Washington. Alan Stern of the Southwest Research Institute (SwRI), headquartered in San Antonio, is the principal investigator and leads the mission. SwRI leads the science team, payload operations, and encounter science planning. New Horizons is part of the New Frontiers program, managed by NASA\u2019s Marshall Space Flight Center in Huntsville, Alabama. APL designed, built and operates the spacecraft.<\/p>\n

Ralph is a joint project between SwRI, Ball Aerospace in Boulder, Colorado, and NASA\u2019s Goddard Space Flight Center, Greenbelt, Maryland.<\/p>\n

For more information on the New Horizons mission, including fact sheets, schedules, video and images, visit:<\/p>\n