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Radar reveals two moons orbiting asteroid Florence

211 点作者 japaget超过 7 年前

5 条评论

jaquers超过 7 年前
Is the &#x27;light&#x27; reflecting off the asteroid emitted from the sun? I had never seen or even knew radar could distinguish value like what is shown here.<p>I suppose terrestrial radar looks at much smaller objects and what it sees is emitted from the tower and bounced back in a straight line so that sort of makes sense.<p>More info on the observatory: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Goldstone_Solar_System_Radar" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Goldstone_Solar_System_Radar</a>
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mukundmr超过 7 年前
How about we have satellites orbiting asteroids for a piggy back ride and then getting off the orbit when they are near a point of interest? My guess is the gravity would be too feeble.
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bediger4000超过 7 年前
How do the orbits of the moons, and the asteroid&#x27;s axis of rotation match up to the ecliptic? Do both moons orbit in the same direction? How eccentric are the orbits of the moons?<p>What&#x27;s the going theory on how such a small body can capture moons? It must not be too difficult, otherwise 3122 Florence wouldn&#x27;t be the 3rd triplet spotted.
hyperpallium超过 7 年前
What&#x27;s the surface gravity? <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;3122_Florence" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;3122_Florence</a><p>Mass isn&#x27;t given, but could estimate from volume, and typical asteroid density?
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SCAQTony超过 7 年前
Imagine hijacking a 100-meter moon made of rare earth metals like gold, platinum, rhodium, ruthenium, iridium, etc. etc. More than enough to under write the mission and pay for a moon base.
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