"Pluto is dead" - Mike Brown, It's official |
"Pluto is dead" - Mike Brown, It's official |
Aug 24 2006, 01:58 PM
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Member Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471 |
-------------------- - blue_scape / Nico -
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Aug 31 2006, 02:19 AM
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Senior Member Group: Members Posts: 1018 Joined: 29-November 05 From: Seattle, WA, USA Member No.: 590 |
Something I thought sounded interesting in one of Mike Brown's papers was the idea that a "planet" in a really eccentric orbit is probably a separate condensation from the original nebula, not a condensation from the accertion disk of the star. Multiple stars do indeed tend to have very elliptical orbits, so a "planet" that condensed that way would likely have one too. He alluded to a "purist" view that insists all such bodies are "stars" not planets, although he didn't sign up to it.
The implied assumption (sounds reasonable, anyway) is that anything that does form from the accretion disk will unavoidably be in a circular orbit near the plane of the ecliptic. |
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Lo-Fi Version | Time is now: 9th June 2024 - 04:26 AM |
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