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Vas Crabb
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Reged: 12/13/05
Posts: 4464
Loc: Melbourne, Australia
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Re: ♫ Dawn go away - I'm no good for you ♫
08/03/11 03:18 PM


> >, after demoting Pluto.
>
> demoting Pluto as a planet made no sense.
>
> "Planet" as a word originally meant "wandering star" because it was a "star" that
> "wandered".
>
> Thus, historically, inclusion criteria for a planet was:
> 1. Visible to a human eye as a persistent point of light in the night sky.
> 2. that moved relative to the other persistent points of light.
>
> Size of the actual object was irrelevant to the ancient astronomers.

Well by that standard, Uranus (sorry, Urectum) and Neptune should also be demoted, as you need a telescope to see either.







Entire thread
Subject Posted by Posted on
* ♫ Dawn go away - I'm no good for you ♫ Andrew 08/03/11 05:28 AM
. * Re: ♫ Dawn go away - I'm no good for you ♫ krick  08/03/11 05:57 AM
. * Re: ♫ Dawn go away - I'm no good for you ♫ TriggerFin  08/03/11 05:34 AM
. * Re: ♫ Dawn go away - I'm no good for you ♫ GatKongModerator  08/03/11 06:18 AM
. * Re: ♫ Dawn go away - I'm no good for you ♫ Vas Crabb  08/03/11 03:18 PM

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