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|caption1 = Orbit in yellow among inner solar system planets before 2017 flyby === Fast rotator and tumbler === ...

...the perihelia of their orbits decline, causing them to encounter the other planets, leading to their ejection.<ref name="Khain_etal_2018">{{cite journal|last1 ...ance: The orbital resonances of [[90482_Orcus|Orcus]] and [[Pluto]] in a [[rotating frame]] with a period equal to [[Neptune]]'s [[orbital period]]. (Neptune i ...

...017, and faded below 27.5 mag (the limit of [[Hubble Space Telescope]] for fast-moving objects) around 1 January 2018. By late 2019, it should have dimmed ...g (rigid body)|tumbling]]" rather than "spinning", and moving sufficiently fast relative to the Sun that it is likely of [[extrasolar]] origin. [[Extrapola ...

...|title=Development of AN Advanced Dust Telescope |journal=Earth, Moon, and Planets |date=December 2004 |volume=95 |issue=1–4 |pages=211–220 |doi=10.1007/s1103 ...the central protostar. The most massive stars [[Stellar evolution|evolve]] fast into luminous [[O-type star|O]] and [[B star]]s that ultimately disperse th ...

...w quickly an object goes around something over a period of time – e.g. how fast the earth orbits the sun). It is measured in angle per unit time, [[radians ...ics of an active [[comet]] such as a tail. As [[Distant minor planet|minor planets in the outer Solar System]] were discovered they were typically found to ha ...

...}</ref> (conversely, an excess may also have [[Toxic heavy metal#Major and minor metal toxins|adverse biological effects]]). An average 70&nbsp;kg [[composi ...polonium and astatine, which decay to bismuth or lead. The r-process is so fast it can skip this zone of instability and go on to create heavier elements s ...