http://www.astronomycast.com/astronomy/plutos-planetary-identity-crisis/ Take a weekly facts-based journey through the cosmos with Astronomy Cast. Thu, 11 Mar 2010 05:19:48 +0000 http://wordpress.org/?v=2.9.1 hourly 1 http://www.astronomycast.com/astronomy/plutos-planetary-identity-crisis/comment-page-1/#comment-1652 Rutherblog » Blog Archive » 65: Did The Earth Move? Fri, 27 Mar 2009 00:12:48 +0000 http://www.astronomycast.com/solar-system/plutos-planetary-identity-crisis/#comment-1652 [...]     Pluto’s Planetary Identity Crisis [...] [...]     Pluto's Planetary Identity Crisis [...]

]]> http://www.astronomycast.com/astronomy/plutos-planetary-identity-crisis/comment-page-1/#comment-1596 elle' Wed, 11 Mar 2009 01:49:43 +0000 http://www.astronomycast.com/solar-system/plutos-planetary-identity-crisis/#comment-1596 this does not tell much info!!!!!!!!!!!!!!!!!!! this does not tell much info!!!!!!!!!!!!!!!!!!!

]]> http://www.astronomycast.com/astronomy/plutos-planetary-identity-crisis/comment-page-1/#comment-138 Star Stryder » Blog Archive » Pluto: Still Not a Planet- by Pamela L. Gay Mon, 06 Aug 2007 12:21:00 +0000 http://www.astronomycast.com/solar-system/plutos-planetary-identity-crisis/#comment-138 [...] So what is a planet? Well, if you want the scientific reasons, go listen to our <a href=”http://www.astronomycast.com/solar-system/plutos-planetary-identity-crisis/”>Astronomy Cast podcast on the topic</a>. Let’s instead imagine, as Brown is telling us to imagine, that you are an alien flying into solar system. As you fly through you see this swarm of small icy things in the outer solar systems followed by these giant gassy blobs. Between the round gas blobs and the rocky worlds are potato shaped giant rocks. The rocky worlds then orbit the sun. An alien would dump things into 4 general bins, big round rocks orbiting the sun, small randomly shaped rocks forming a belt, gas giants, and icy swarming objects. Since the terrestrial planets and gas giants both orbit in orbits with nothing else (other than their moons), you can see these as two parts of the same (we call it planet) bin. At the same time, the asteroids and Kuiper Belt objects - the stuff that swarms - can be seen as two parts of the same (we call it minor planet) bin. [...] [...] So what is a planet? Well, if you want the scientific reasons, go listen to our <a href="http://www.astronomycast.com/solar-system/plutos-planetary-identity-crisis/">Astronomy Cast podcast on the topic</a>. Let's instead imagine, as Brown is telling us to imagine, that you are an alien flying into solar system. As you fly through you see this swarm of small icy things in the outer solar systems followed by these giant gassy blobs. Between the round gas blobs and the rocky worlds are potato shaped giant rocks. The rocky worlds then orbit the sun. An alien would dump things into 4 general bins, big round rocks orbiting the sun, small randomly shaped rocks forming a belt, gas giants, and icy swarming objects. Since the terrestrial planets and gas giants both orbit in orbits with nothing else (other than their moons), you can see these as two parts of the same (we call it planet) bin. At the same time, the asteroids and Kuiper Belt objects – the stuff that swarms – can be seen as two parts of the same (we call it minor planet) bin. [...]

]]> http://www.astronomycast.com/astronomy/plutos-planetary-identity-crisis/comment-page-1/#comment-130 Star Stryder » Blog Archive » Eris Gets Mass Up-sizing- by Pamela L. Gay Thu, 14 Jun 2007 01:05:51 +0000 http://www.astronomycast.com/solar-system/plutos-planetary-identity-crisis/#comment-130 [...] For those of you who really really want Pluto to be a planet, please listen to this episode of Astronomy Cast before you send me angry comments. [...] [...] For those of you who really really want Pluto to be a planet, please listen to this episode of Astronomy Cast before you send me angry comments. [...]

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