File:Hubble views of Dimorphos ejecta (September 26-27).png
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Summary
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English: These images from NASA’s Hubble Space Telescope, taken 22 minutes, 5 hours, and 8.2 hours after NASA’s Double Asteroid Redirection Test (DART) intentionally impacted Dimorphos, show expanding plumes of ejecta from the asteroid’s body. This event was the world’s first test of the kinetic impact technique using a spacecraft to deflect an asteroid by modifying its orbit.
The Hubble images show ejecta from the impact that appear as rays stretching out from the body of the asteroid. The bolder, fanned-out spike of ejecta to the left of the asteroid is in the general direction from which DART approached. In the Hubble images, astronomers estimate that the brightness of the Didymos system increased by 3 times after impact. They’re also particularly intrigued by how that brightness then held steady, even eight hours after impact. These observations, when combined with data from NASA’s James Webb Space Telescope, will allow scientists to gain knowledge about the nature of the surface of Dimorphos, how much material was ejected by the collision, how fast it was ejected, and the distribution of particle sizes in the expanding dust cloud. Hubble will observe the Didymos-Dimorphos system ten more times over the next three weeks to monitor how the ejecta cloud expands and fades over time. Hubble observations were conducted in one filter, WFC3/UVIS F350LP, and assigned the color blue. |
| Date | 26 September 2022 and 27 September 2022 |
| Source | https://hubblesite.org/contents/media/images/2022/047/01GE2B5TF1HQQT5MPPQ9JY750E (image link) |
| Author | Science: NASA, ESA, Jian-Yang Li (PSI); Image Processing: Alyssa Pagan (STScI) |
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This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 05:05, 30 September 2022 | | 1,320 × 440 (670 KB) | Huntster (talk | contribs) | {{Information |Description={{en|1=These images from NASA’s Hubble Space Telescope, taken 22 minutes, 5 hours, and 8.2 hours after NASA’s Double Asteroid Redirection Test (DART) intentionally impacted Dimorphos, show expanding plumes of ejecta from the asteroid’s body. This event was the world’s first test of the kinetic impact technique using a spacecraft to deflect an asteroid by modifying its orbit. The Hubble images show ejecta from the impact that appear as rays stretching out from the b... |
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