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Cake day: June 15th, 2023

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  • I don’t think they would be dwarf planets, but something else.

    The International Astronomical Union (IAU) defined in August 2006 that, in the Solar System, a planet is a celestial body that:

    1 is in orbit around the Sun, 2 has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and 3 has “cleared the neighbourhood” around its orbit.

    A dwarf planet must meet 1 & 2. Are Jupiter’s smaller moons round?

    Jupiter has rings, so any planet would have to have cleared the rings around their orbit. I think that applies to the Galilean moons. Juno orbits outside the solar plane, so I’m not sure if that is a rule for a planet or not.





  • That’s prehistory. Everything we know about history comes from written accounts. Historians study written documents and argue whether or not the available evidence makes it more likely that something (or someone) was real or fiction.

    Most historians agree that there was a Jewish man named Jesus (yehoshua), who preached in Judea and the Galilee in the early first century, who gained followers and was crucified by Rome. There are also historians who examine the same evidence and conclude it is more likely that no such person existed, because that’s how academia works.

    See also for comparison: Genghis Khan