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Comet46P_AreciboRadar.gif (400 × 400 pixels, file size: 538 KB, MIME type: image/gif, looped, 5 frames, 1.5 s)
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Summary
| Description |
English: This sequence of radar images of Comet 46P/Wirtanen from Dec. 15 shows apparent rotation of the nucleus in a counter-clockwise direction. The vertical axis is distance in the line-of-sight (15m/pixel) and the horizontal axis is in Doppler velocity from the comet’s rotation. The nucleus rotates once every 8.9 hours, determined from optical images. This movie covers 1.4 hours of the comet’s rotation. By combining images taken over several days, scientists can construct a shape model of the comet nucleus. |
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| Source |
Sources: http://www.naic.edu/~pradar/press/dec18obs.php and https://uanews.arizona.edu/story/ua-researcher-captures-rare-radar-images-comet-46pwirtanen Direct image link: http://www.naic.edu/~pradar/images/Comet46P_15dec18UT.gif |
| Author | Arecibo Observatory/NASA/NSF |
Licensing
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:25, 9 June 2019 | | 400 × 400 (538 KB) | Nrco0e | User created page with UploadWizard |
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