Comments on: Two days after DART’s impact of Dimorphus, ejected dust extends like a comet tail out more than 6,000 miles https://behindtheblack.com/behind-the-black/points-of-information/two-days-after-darts-impact-of-dimorphus-ejected-dust-extends-like-a-comet-tail-out-more-than-6000-miles/ Wed, 05 Oct 2022 03:20:42 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Ray Van Dune https://behindtheblack.com/behind-the-black/points-of-information/two-days-after-darts-impact-of-dimorphus-ejected-dust-extends-like-a-comet-tail-out-more-than-6000-miles/#comment-1360283 Wed, 05 Oct 2022 03:20:42 +0000 https://behindtheblack.com/?p=88859#comment-1360283 sippin_bourbon: “Wondering if that trail means that it is more of a dust pile, rather than a rubble pile.”

Perhaps it means a hunk of it was shattered / shocked into a dust pile?

]]> By: Max https://behindtheblack.com/behind-the-black/points-of-information/two-days-after-darts-impact-of-dimorphus-ejected-dust-extends-like-a-comet-tail-out-more-than-6000-miles/#comment-1359802 Tue, 04 Oct 2022 04:00:02 +0000 https://behindtheblack.com/?p=88859#comment-1359802 The early pictures suggest a rubble pile. It appears the rocket had an effect like a bullet hitting a watermelon.
https://www.nasa.gov/feature/first-images-from-italian-space-agency-s-liciacube-satellite

]]> By: sippin_bourbon https://behindtheblack.com/behind-the-black/points-of-information/two-days-after-darts-impact-of-dimorphus-ejected-dust-extends-like-a-comet-tail-out-more-than-6000-miles/#comment-1359713 Tue, 04 Oct 2022 00:09:23 +0000 https://behindtheblack.com/?p=88859#comment-1359713 Wondering if that trail means that it is more of a dust pile, rather than a rubble pile.

]]> By: Robert Zimmerman https://behindtheblack.com/behind-the-black/points-of-information/two-days-after-darts-impact-of-dimorphus-ejected-dust-extends-like-a-comet-tail-out-more-than-6000-miles/#comment-1359651 Mon, 03 Oct 2022 21:13:38 +0000 https://behindtheblack.com/?p=88859#comment-1359651 In reply to Jerry Greenwood.

Jerry Greenwood: There are other variables that could not be measured in advance. For example, the structure of Dimorphus could be strong, or weak. If a rubble pile, for example, it would be very weak. In that case predicting the outcome is more difficult. It could break up into a cloud of debris that will slowly coalesce back together, or be flung apart. It would also be hard to predict how much breakage there would be.

The images and subsequent large cloud (larger than expected) suggest a rubble pile.

]]> By: Jerry Greenwood https://behindtheblack.com/behind-the-black/points-of-information/two-days-after-darts-impact-of-dimorphus-ejected-dust-extends-like-a-comet-tail-out-more-than-6000-miles/#comment-1359645 Mon, 03 Oct 2022 20:55:14 +0000 https://behindtheblack.com/?p=88859#comment-1359645 It will be interesting to see the numbers when they come out and how closely they equate to the expected results. If the estimate (guess?) of the mass of the parent and it’s satellite are accurate, and knowing the velocity and mass of Dart, the numbers should be very close. The only variable would be how close to the center of Dimorphus’ CG the Dart struck.

Keep us in the loop.

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