{"id":3106,"date":"2006-08-30T15:18:00","date_gmt":"2006-08-30T20:18:00","guid":{"rendered":""},"modified":"2020-03-27T21:33:03","modified_gmt":"2020-03-28T02:33:03","slug":"planet-classification","status":"publish","type":"post","link":"https:\/\/henrymelton.net\/2\/2006\/08\/30\/planet-classification\/","title":{"rendered":"Planet Classification"},"content":{"rendered":"<p>Since I&#8217;ve become disillusioned with the IAU&#8217;s planet classification system, and since I&#8217;m a science fiction writer, I&#8217;ve decided to make my own system.<\/p>\n<p>Here is my proposed naming and classification system.  Feel free to suggest alternatives.  I will probably be using this system when I get back to my grand future history, multiple novel epic, The Terraforming Project.  <i>See <a href=\"http:\/\/www.io.com\/~hmelton\/stories\/0\/tproject.html\">this link for info<\/a>.<\/i><\/p>\n<p><b>Planets<\/b> are visibly star-like objects , which move in relationship to the fixed star background, and that can be seen with the unaided eye from Earth.  <i>Mercury, Venus, Mars, Jupiter, Saturn<\/i><\/p>\n<p><b>Gas Giants<\/b> Large objects dominantly composed of gases, but which do not use fusion to produce their own heat. <i>Jupiter, Saturn, Uranus, Neptune.<\/i><\/p>\n<p><b>Stars<\/b> Large objects dominantly composed of gases, but which do use fusion to produce their own heat.<\/p>\n<p><b>Planetoids<\/b> Objects dominantly composed of solid matter, which has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape. <i>Mercury, Venus, Earth, Luna, Mars, Ceres, major moons of gas giants, Pluto, Chiron, Xena, and other trans plutonian objects.<\/i><\/p>\n<p><b>Asteroids<\/b> Objects dominantly composed of solid matter, which have sufficient gravity to hold smaller objects on their surface. <i>Moons of Mars, asteroid belt objects, smaller moons of gas giants, etc.<\/i><\/p>\n<p><b>Clutter<\/b> Solid objects which do not have sufficient gravity to hold smaller objects.<\/p>\n<p>Notes:  Rather than be wordy, I left the obvoius exclusions off, e.g. a planetoid can also hold small objects by gravity, but that doesn&#8217;t make it an asteroid.<\/p>\n<p>I&#8217;m curious what people think.  Any obvious problems?<\/p>\n<p>Within these classifications, there would be subclasses, as needed.  <b>Planets<\/b> is just a historical class and isn&#8217;t really useful for newly discovered objects, unless we get a visitor from somewhere else, like in &#8220;When Worlds Collide&#8221;.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Since I&#8217;ve become disillusioned with the IAU&#8217;s planet classification system, and since I&#8217;m a science fiction writer, I&#8217;ve decided to make my own system. Here is my proposed naming and classification system. Feel free to suggest alternatives. I will probably be using this system when I get back to my grand future history, multiple novel&hellip; <a class=\"more-link\" href=\"https:\/\/henrymelton.net\/2\/2006\/08\/30\/planet-classification\/\">Continue reading <span class=\"screen-reader-text\">Planet Classification<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[1],"tags":[394,395,81],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4t90x-O6","_links":{"self":[{"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/posts\/3106"}],"collection":[{"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/comments?post=3106"}],"version-history":[{"count":1,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/posts\/3106\/revisions"}],"predecessor-version":[{"id":3107,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/posts\/3106\/revisions\/3107"}],"wp:attachment":[{"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/media?parent=3106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/categories?post=3106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/henrymelton.net\/2\/wp-json\/wp\/v2\/tags?post=3106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}