Hakutulokset
  1. 3. tammik.
  2. 28. jouluk. 2021

    I’ve known the green slide & the red rift for 6 years but this photo allowed me just now to realise why the slides went up the head disproportionately high at Bastet and Ma’at/Serqet border but not at central Ma’at. I noted it 6 years ago on the blog but couldn’t explain it

  3. 4. tammik.

    A long summary of what Rosetta mission found on comet . By Kathrin Altwegg

  4. 3. tammik.

    remotely taken through . December 27, 2021. LRGB 300 secs per each

  5. 1. tammik.
    Vastauksena käyttäjälle

    But they’re not all rubble piles. It’s impossible for a rubble pile to rotate below a certain rate. It needs cohesion- so not a rubble pile. Threshold for fragmentation is very closely related to rw^2 = GM/r^2 for satellites. My ‘spin-up calcs’ link applies it to single body

  6. 30. jouluk. 2021
    Vastauksena käyttäjille ja

    …because the rotation period ratio isn’t big enough for the size ratio. So one could start by assuming the larger is near failure and derive the spin rate for the former via AM. This is what I did for but the opposite way round: original>bilobe.

  7. 4. tammik.

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