Fermi's Motion Produces a Study in Spirograph [hd video] : 無料・フリー素材/写真
Fermi's Motion Produces a Study in Spirograph [hd video] / NASA Goddard Photo and Video
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| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | The Vela pulsar outlines a fascinating pattern in this movie showing 51 months of position and exposure data from Fermi's Large Area Telescope (LAT). The pattern reflects numerous motions of the spacecraft, including its orbit around Earth, the precession of its orbital plane, the manner in which the LAT nods north and south on alternate orbits, and more. The movie renders Vela's position in a fisheye perspective, where the middle of the pattern corresponds to the central and most sensitive portion of the LAT's field of view. The edge of the pattern is 90 degrees away from the center and well beyond what scientists regard as the effective limit of the LAT's vision. Better knowledge of how the LAT's sensitivity changes across its field of view helps Fermi scientists better understand both the instrument and the data it returns.Credit: NASA/DOE/Fermi LAT CollaborationDownload video in HD formats: svs.gsfc.nasa.gov/goto?11205Watch this video on YouTube: youtu.be/_QpMeEdmZPM-----NASA's Fermi Gamma-ray Space Telescope orbits our planet every 95 minutes, building up increasingly deeper views of the universe with every circuit. Its wide-eyed Large Area Telescope (LAT) sweeps across the entire sky every three hours, capturing the highest-energy form of light -- gamma rays -- from sources across the universe. These range from supermassive black holes billions of light-years away to intriguing objects in our own galaxy, such as X-ray binaries, supernova remnants and pulsars.Now a Fermi scientist has transformed LAT data of a famous pulsar into a mesmerizing movie that visually encapsulates the spacecraft's complex motion. Click here to continue reading: 1.usa.gov/WhYwCUNASA image use policy.NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.Follow us on TwitterLike us on FacebookFind us on Instagram |
| 撮影日 | 2013-02-27 07:42:01 |
| 撮影者 | NASA Goddard Photo and Video , Greenbelt, MD, USA |
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