Maintenance script: Example system: fuller planet sections

2026-10-23T08:51:53Z

Example system: fuller planet sections

← Older revision		Revision as of 08:51, 23 October 2026
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	\| temperature = −173 ~ 427 °C		\| temperature = −173 ~ 427 °C
	}}		}}
	'''Mercury''' is the smallest planet and the closest to the Sun. With almost no atmosphere to hold heat, its surface swings ~~between some of the most extreme temperatures~~ in ~~the system~~. Its ~~heavily cratered surface resembles that~~ of ~~Earth~~'s ~~moon~~.		'''Mercury''' is the smallest planet and the closest to the Sun, orbiting at an average distance of 58 million km. It is only slightly larger than Earth's moon, which its heavily cratered surface closely resembles. Its largest impact feature, the Caloris Basin, is around 1,550 km across. Long cliffs called lobate scarps run across the surface, formed as the planet's interior cooled and shrank.

			Mercury rotates three times for every two orbits, so a single day, from one sunrise to the next, lasts 176 Earth days. With almost no atmosphere to hold heat, its surface swings from around 427 °C in daylight to −173 °C at night. Despite this, water ice survives in permanently shadowed craters near its poles. Its iron core is unusually large, taking up around 85 percent of the planet's radius.

	=== Venus ===		=== Venus ===
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	\| gravity = 0.90 g		\| gravity = 0.90 g
	\| atmosphere = Carbon dioxide (96.5%), nitrogen; ~92 times Earth's pressure		\| atmosphere = Carbon dioxide (96.5%), nitrogen; ~92 times Earth's pressure
	\| temperature = ~464 °C		\| temperature = About 464 °C
	}}		}}
	'''Venus''' is almost the same size as Earth, but a runaway greenhouse effect ~~has made~~ it the hottest planet in the system, hot enough to melt lead. Thick clouds of sulphuric acid hide its surface completely.		'''Venus''' is almost the same size and mass as Earth, and is sometimes called its sister planet, but the two could hardly be more different. Its dense carbon dioxide atmosphere presses down with about 92 times Earth's surface pressure, comparable to being 900 m under the sea. The resulting runaway greenhouse effect makes it the hottest planet in the system, hotter even than Mercury, at around 464 °C: hot enough to melt lead.

			Thick clouds of sulphuric acid hide its surface completely, and reflect so much sunlight that Venus is the brightest natural object in the night sky after Earth's moon. It rotates backwards, and so slowly that one rotation takes longer than its year. Its volcanic plains have relatively few craters, suggesting the whole surface was renewed a few hundred million years ago. The longest any lander has survived there is just over two hours.

	=== Earth ===		=== Earth ===
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	\| gravity = 1 g		\| gravity = 1 g
	\| atmosphere = Nitrogen (78%), oxygen (21%)		\| atmosphere = Nitrogen (78%), oxygen (21%)
	\| temperature = ~15 °C (average)		\| temperature = About 15 °C (average)
	\| surface = ~71% water		\| surface = ~71% water
	\| native_species = [[Evolutionary:Example species\|Humans]] and millions of other species		\| native_species = [[Evolutionary:Example species\|Humans]] and millions of other species
	}}		}}
	'''Earth''' is the ~~only planet in~~ the ~~system with~~ liquid ~~water~~ on ~~its~~ surface and the only ~~one~~ known to support life. Its unusually large ~~moon~~ stabilises the tilt of its axis, keeping its seasons and climate relatively steady over long periods. It is the homeworld of [[Evolutionary:Example species\|humans]].		'''Earth''' orbits the Sun at an average distance of about 150 million km, within the range where water can stay liquid on a planet's surface. Oceans cover around 71 percent of it, and it is the only world in the system known to support life. Its oxygen-rich atmosphere is itself a product of life: almost all of its oxygen was released by photosynthesising organisms over billions of years.

			A liquid iron outer core generates a magnetic field that shields the surface from the solar wind, while plate tectonics slowly recycles its crust. Its moon, about a quarter of Earth's diameter, is unusually large for its planet and probably formed from debris thrown out by a giant collision early in Earth's history. The Moon drives Earth's ocean tides and stabilises the tilt of its axis, keeping its seasons and climate relatively steady over long periods. Earth is the homeworld of [[Evolutionary:Example species\|humans]].

	=== Mars ===		=== Mars ===
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	\| gravity = 0.38 g		\| gravity = 0.38 g
	\| atmosphere = Carbon dioxide (95%); under 1% of Earth's pressure		\| atmosphere = Carbon dioxide (95%); under 1% of Earth's pressure
	\| temperature = ~−60 °C (average)		\| temperature = About −60 °C (average)
	}}		}}
	'''Mars''' is a cold desert world whose red colour comes from iron oxide dust. Dry riverbeds and lake deposits show that liquid water once flowed on its surface. It is ~~home to Olympus Mons,~~ the ~~tallest known volcano~~ in the system.		'''Mars''' is a cold desert world about half the diameter of Earth, whose red colour comes from iron oxide dust covering its surface. Its atmosphere is less than 1 percent as dense as Earth's, too thin to keep liquid water stable on the surface. Temperatures average about −60 °C, and its poles are capped with water ice and frozen carbon dioxide. Planet-wide dust storms can hide the entire surface for weeks.

			It holds some of the largest landforms in the system: Olympus Mons, a shield volcano around 22 km high, and Valles Marineris, a canyon system roughly 4,000 km long. Dry riverbeds, deltas, and lake deposits show that liquid water once flowed across its surface billions of years ago. Its two small moons, Phobos and Deimos, may be captured asteroids. After Earth, Mars is the most explored planet in the system, visited by many orbiters and several rovers.

	=== Jupiter ===		=== Jupiter ===
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	\| gravity = 2.53 g (at the cloud tops)		\| gravity = 2.53 g (at the cloud tops)
	\| atmosphere = Hydrogen, helium		\| atmosphere = Hydrogen, helium
	\| temperature = ~−110 °C (cloud tops)		\| temperature = About −110 °C (cloud tops)
	}}		}}
	'''Jupiter''' is the largest planet, more than twice as massive as all the other planets combined. Its Great Red Spot is a storm wider than Earth ~~that~~ has ~~raged for centuries~~. Its ~~moon~~ Europa ~~is thought to hide~~ a liquid water ocean beneath its icy crust.		'''Jupiter''' is the largest planet, about 318 times the mass of Earth and more than twice as massive as all the other planets combined. It has no solid surface: its atmosphere of hydrogen and helium simply grows denser with depth. Its rapid rotation, under 10 hours, flattens it visibly at the poles and stretches its clouds into the planet's distinctive bands. The Great Red Spot, a storm wider than Earth, has been observed continuously since at least the 19th century.

			Jupiter has the strongest magnetic field of any planet, surrounded by radiation belts intense enough to damage spacecraft. Its four largest moons, the Galilean moons, are worlds in their own right. Io is the most volcanically active body in the system; Europa likely hides a liquid water ocean beneath its icy crust; Ganymede is the largest moon in the system, bigger than Mercury; and Callisto is one of the most heavily cratered objects known.

	=== Saturn ===		=== Saturn ===
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	\| gravity = 1.07 g (at the cloud tops)		\| gravity = 1.07 g (at the cloud tops)
	\| atmosphere = Hydrogen, helium		\| atmosphere = Hydrogen, helium
	\| temperature = ~−140 °C (cloud tops)		\| temperature = About −140 °C (cloud tops)
	}}		}}
	'''Saturn''' is best known for its ~~bright~~ ring system, made of countless pieces of water ice ~~and rock~~. ~~It is the least dense planet, less dense than water~~. ~~Its~~ largest moon, Titan, ~~has~~ a thick atmosphere and ~~lakes~~ of liquid methane.		'''Saturn''' is the second-largest planet, around 95 times the mass of Earth, and the least dense: on average it is less dense than water. It is best known for its ring system, which spans more than 270,000 km but is, in most places, only tens of metres thick. The rings are made of countless pieces of water ice, from grains of dust to boulders the size of houses. A persistent six-sided cloud pattern circles its north pole.

			Saturn's largest moon, Titan, is bigger than Mercury and is the only moon in the system with a thick atmosphere. Its surface has rivers, lakes, and seas of liquid methane and ethane, fed by methane rain. Another moon, Enceladus, sprays jets of water vapour and ice from a hidden ocean out through cracks near its south pole.

	=== Uranus ===		=== Uranus ===
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	\| gravity = 0.90 g (at the cloud tops)		\| gravity = 0.90 g (at the cloud tops)
	\| atmosphere = Hydrogen, helium, methane		\| atmosphere = Hydrogen, helium, methane
	\| temperature = ~−195 °C (cloud tops)		\| temperature = About −195 °C (cloud tops)
	}}		}}
	'''Uranus''' is tilted almost completely on its side, with an axial tilt of about 98 degrees, so each pole spends ~~decades~~ in continuous sunlight followed by ~~decades~~ of darkness. ~~Methane~~ in ~~its atmosphere gives it a pale cyan colour~~.		'''Uranus''' is an ice giant: beneath its hydrogen and helium atmosphere, most of its mass is a hot, dense fluid of water, ammonia, and methane surrounding a small rocky core. Methane in the upper atmosphere absorbs red light, giving the planet its pale cyan colour. Its atmosphere is the coldest of any planet, reaching around −224 °C.

			Uranus is tilted almost completely on its side, with an axial tilt of about 98 degrees, probably the result of a giant collision long ago. As a result, each pole spends around 42 years in continuous sunlight followed by 42 years of darkness. It has a faint system of 13 known rings. Uranus was the first planet discovered with a telescope, in 1781, and has been visited by only one spacecraft, ''Voyager 2'', in 1986.

	=== Neptune ===		=== Neptune ===
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	\| gravity = 1.14 g (at the cloud tops)		\| gravity = 1.14 g (at the cloud tops)
	\| atmosphere = Hydrogen, helium, methane		\| atmosphere = Hydrogen, helium, methane
	\| temperature = ~−200 °C (cloud tops)		\| temperature = About −200 °C (cloud tops)
	}}		}}
	'''Neptune''' is the outermost planet ~~and the windiest~~, ~~with storms reaching over 2,000~~ km/h. It was the first planet found by mathematical prediction rather than ~~direct observation~~. Its largest moon, Triton, orbits backwards and is probably a captured Kuiper belt object.		'''Neptune''' is the outermost planet, orbiting about 4.5 billion km from the Sun; a single orbit takes nearly 165 years. It was the first planet found by mathematical prediction rather than by searching the sky: irregularities in Uranus's orbit led astronomers to calculate where an unseen planet must be, and it was spotted there in 1846.

			Despite receiving very little sunlight, Neptune has the fastest winds in the system, reaching over 2,000 km/h. Its largest moon, Triton, orbits backwards, against the planet's rotation, and is probably a captured Kuiper belt object. Triton is one of the few geologically active moons, with geysers of nitrogen gas. Like Uranus, Neptune has been visited only by ''Voyager 2'', which flew past in 1989.

	== Life ==		== Life ==

Maintenance script: Example pages: Humans and the Sol system, at the level of detail of real articles

2026-10-23T08:49:42Z

Example pages: Humans and the Sol system, at the level of detail of real articles

Show changes

Maintenance script: Merge planets into star system pages

2026-10-19T22:52:27Z

Merge planets into star system pages

← Older revision		Revision as of 22:52, 19 October 2026
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	{{Notice\|'''Example page.''' This shows how a star system page is laid out. It isn't canon. Open the editor to see how it's built.}}		{{Notice\|'''Example page.''' This shows how a star system page is laid out, with its planets on the same page. It isn't canon. Open the editor to see how it's built.}}
	{{Infobox star system		{{Infobox star system
	\| name = Halcyon		\| name = Halcyon
	\| stars = 1		\| stars = 1
	\| star_type = K-type (orange dwarf)		\| star_type = K-type (orange dwarf)
	\| planets = [[~~Evolutionary:Example planet~~\|Nereid]]		\| planets = [[#Nereid\|Nereid]]
	\| native_species = [[Evolutionary:Example species\|Ember octopus]]		\| native_species = [[Evolutionary:Example species\|Ember octopus]]
	}}		}}
	The '''Halcyon''' system is a single-star system with an orange dwarf star. It ~~is home to~~ the ocean world [[~~Evolutionary:Example planet~~\|Nereid]].		The '''Halcyon''' system is a single-star system with an orange dwarf star. It has one known planet, the ocean world [[#Nereid\|Nereid]].

	== Overview ==		== Overview ==
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	== Planets ==		== Planets ==
	* [[Evolutionary:Example ~~planet~~\|~~Nereid~~]], an ocean world		<!-- Each planet gets its own sub-section, with a {{Planet}} box at the top. -->
			=== Nereid ===
			{{Planet
			\| name = Nereid
			\| type = Ocean world
			\| gravity = 0.9 g
			\| day_length = 27 hours
			\| atmosphere = Nitrogen, oxygen
			\| native_species = [[Evolutionary:Example species\|Ember octopus]]
			}}
			'''Nereid''' is an ocean world covered entirely by a deep global ocean. Volcanic ridges on its seafloor are lined with hydrothermal vents, where most of its known life lives, including the [[Evolutionary:Example species\|ember octopus]].

	== Behind the scenes ==		== Behind the scenes ==
	* Written as the example star system page for this wiki.		* Written as the example star system page for this wiki.

Maintenance script: Three minimal example pages: species, planet, system

2026-10-18T06:10:56Z

Three minimal example pages: species, planet, system

New page

{{Notice|'''Example page.''' This shows how a star system page is laid out. It isn't canon. Open the editor to see how it's built.}}
{{Infobox star system
| name = Halcyon
| stars = 1
| star_type = K-type (orange dwarf)
| planets = [[Evolutionary:Example planet|Nereid]]
| native_species = [[Evolutionary:Example species|Ember octopus]]
}}
The '''Halcyon''' system is a single-star system with an orange dwarf star. It is home to the ocean world [[Evolutionary:Example planet|Nereid]].

== Overview ==
Halcyon's star is smaller and cooler than the Sun, and is expected to shine for tens of billions of years.

== Planets ==
* [[Evolutionary:Example planet|Nereid]], an ocean world

== Behind the scenes ==
* Written as the example star system page for this wiki.

Evolutionary:Example system - Revision history

Maintenance script: Example system: fuller planet sections

Maintenance script: Example pages: Humans and the Sol system, at the level of detail of real articles

Maintenance script: Merge planets into star system pages

Maintenance script: Three minimal example pages: species, planet, system