File:Stereo c2021 a1 leonard hi2a 20211214 v5.gif
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Stereo_c2021_a1_leonard_hi2a_20211214_v5.gif (600 × 482 pixels, file size: 2.98 MB, MIME type: image/gif, looped, 19 frames, 3.3 s)
Captions
Captions
Difference image, which highlights subtle changes in comet Leonard’s tail over two frames, captured by the HI-2 telescope aboard NASA’s STEREO-A spacecraft.
Summary[edit]
| Description |
English: SECCHI/HI-2 telescope on NASA’s Solar Terrestrial Relations Observatory-A spacecraft has watched comet Leonard since early November. This animated “difference image” was created by subtracting the current frame from the previous frame to highlight differences between them. Difference images are useful for seeing subtle changes in Leonard’s ion tail (the trail of ionized gases streaming from the comet’s body, or nucleus), which becomes longer and brighter toward the end of the clip. |
| Date | |
| Source | https://www.nasa.gov/image-feature/goddard/2021/views-of-comet-leonard-from-two-sun-watching-spacecraft |
| Author | NASA/NRL/Karl Battams |
Licensing[edit]
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:25, 26 December 2021 | | 600 × 482 (2.98 MB) | C messier (talk | contribs) | Uploaded a work by NASA/NRL/Karl Battams from https://www.nasa.gov/image-feature/goddard/2021/views-of-comet-leonard-from-two-sun-watching-spacecraft with UploadWizard |
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