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Off in the distance
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May 2016

The Bellinghman
Date: 2009-08-28 11:01
Subject: 1994 CC
Security: Public
the moons are at least 50 meters in diameter

I'm sorry, my mental image of what a moon should be does imply something a little bit larger than that. Given that the term 'planet' now has certain size restrictions, could we also have size restrictions on moons? Like, at least an order of magnitude larger than the ISS?

(Yes, I know that 'at least 50 meters' could include stuff a lot larger, but in this case, the primary is only 700m in diameter, and the satellites are unlikely to be over 100m diameter.)
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User: jon_a_five
Date: 2009-08-28 10:06 (UTC)
Subject: (no subject)
"There is no accepted definition,"


Personally I'd say if you can stand on it, it's a moon :-)
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The Bellinghman
User: bellinghman
Date: 2009-08-28 10:23 (UTC)
Subject: (no subject)
A good link. Though the fact it's talking about the difficulties with objects a mere km in diameter means that 1994 CC's satellites (a order of magnitude smaller) are really stretching things.

And you certainly can't stand on something only 50m in diameter. You can stick yourself to it, but something with an escape velocity of ~10 cm per second isn't going to hold onto you well enough for you to stay attached.

(Escape velocity there guessed - I'm making all sorts of assumptions about density and the like.)
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Jos Dingjan
User: happydisciple
Date: 2009-08-28 12:18 (UTC)
Subject: (no subject)
That's no moon.
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