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		<id>https://terra.mrangel.info/index.php?action=history&amp;feed=atom&amp;title=Category%3AClass_4_planets</id>
		<title>Category:Class 4 planets - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://terra.mrangel.info/index.php?action=history&amp;feed=atom&amp;title=Category%3AClass_4_planets"/>
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		<updated>2026-06-18T19:25:55Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
		<generator>MediaWiki 1.30.0</generator>

	<entry>
		<id>https://terra.mrangel.info/index.php?title=Category:Class_4_planets&amp;diff=493&amp;oldid=prev</id>
		<title>Angel: fixing links</title>
		<link rel="alternate" type="text/html" href="https://terra.mrangel.info/index.php?title=Category:Class_4_planets&amp;diff=493&amp;oldid=prev"/>
				<updated>2007-04-05T00:55:10Z</updated>
		
		<summary type="html">&lt;p&gt;fixing links&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 00:55, 5 April 2007&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A class 4 planet is often so highly populated that primary industry is rare or even non-existent, and a complex and highly-developed technological infrastructure is necessary to distribute the available resources. A [[:Category: Class 3 planets|class 3 planet]] is usually promoted to class 4 when all major bodies in the system are settled, and it is possible to travel between them without the use of [[:Category: Spacecraft|spacecraft]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A class 4 planet is often so highly populated that primary industry is rare or even non-existent, and a complex and highly-developed technological infrastructure is necessary to distribute the available resources. A [[:Category: Class 3 planets|class 3 planet]] is usually promoted to class 4 when all major bodies in the system are settled, and it is possible to travel between them without the use of [[:Category: Spacecraft|spacecraft]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Every planetary body and habitable moon will have its own orbital ring, a group of [[line &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;stations&lt;/del&gt;]] and other satellites connected by lengths of [[downline]] to form a stationary ring or sphere of habitable segments, a kind of city in the sky. There will also be large loops of [[downline]] on each planet's orbital path, which the rock moves along. These allow [[&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;elevators&lt;/del&gt;]] to be used for all intra-system travel.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Every planetary body and habitable moon will have its own orbital ring, a group of [[line &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;station&lt;/ins&gt;]]&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;s &lt;/ins&gt;and other satellites connected by lengths of [[downline]] to form a stationary ring or sphere of habitable segments, a kind of city in the sky. There will also be large loops of [[downline]] on each planet's orbital path, which the rock moves along. These allow [[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;elevator&lt;/ins&gt;]]&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;s &lt;/ins&gt;to be used for all intra-system travel.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;As the population grows still further, satellites and [[habitation module]]s may be strung along these world rings, although this kind of intensive development will quickly use up any excess rock and metal in the system's planets and asteroids. Once these constructions reach a certain density (allowing populations in the hundreds of billions), the planet may be promoted to [[:Category: Class 5 planets|class 5]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;As the population grows still further, satellites and [[habitation module]]s may be strung along these world rings, although this kind of intensive development will quickly use up any excess rock and metal in the system's planets and asteroids. Once these constructions reach a certain density (allowing populations in the hundreds of billions), the planet may be promoted to [[:Category: Class 5 planets|class 5]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Planets]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category: Planets]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Angel</name></author>	</entry>

	<entry>
		<id>https://terra.mrangel.info/index.php?title=Category:Class_4_planets&amp;diff=492&amp;oldid=prev</id>
		<title>Angel: New page: A class 4 planet is often so highly populated that primary industry is rare or even non-existent, and a complex and highly-developed technological infrastructure is necessary to distribute...</title>
		<link rel="alternate" type="text/html" href="https://terra.mrangel.info/index.php?title=Category:Class_4_planets&amp;diff=492&amp;oldid=prev"/>
				<updated>2007-04-03T03:21:26Z</updated>
		
		<summary type="html">&lt;p&gt;New page: A class 4 planet is often so highly populated that primary industry is rare or even non-existent, and a complex and highly-developed technological infrastructure is necessary to distribute...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;A class 4 planet is often so highly populated that primary industry is rare or even non-existent, and a complex and highly-developed technological infrastructure is necessary to distribute the available resources. A [[:Category: Class 3 planets|class 3 planet]] is usually promoted to class 4 when all major bodies in the system are settled, and it is possible to travel between them without the use of [[:Category: Spacecraft|spacecraft]].&lt;br /&gt;
&lt;br /&gt;
Every planetary body and habitable moon will have its own orbital ring, a group of [[line stations]] and other satellites connected by lengths of [[downline]] to form a stationary ring or sphere of habitable segments, a kind of city in the sky. There will also be large loops of [[downline]] on each planet's orbital path, which the rock moves along. These allow [[elevators]] to be used for all intra-system travel.&lt;br /&gt;
&lt;br /&gt;
As the population grows still further, satellites and [[habitation module]]s may be strung along these world rings, although this kind of intensive development will quickly use up any excess rock and metal in the system's planets and asteroids. Once these constructions reach a certain density (allowing populations in the hundreds of billions), the planet may be promoted to [[:Category: Class 5 planets|class 5]].&lt;br /&gt;
&lt;br /&gt;
[[Category: Planets]]&lt;/div&gt;</summary>
		<author><name>Angel</name></author>	</entry>

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