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== Etymology ==
== Etymology ==


The [[XXX|modern XXX]] word ''Gentu'' developed from the [[old XXX]] word most often spelled Ĵĕneşės, and the [[old XXX]] phrase spelled Řėľțŭ, both words and phrases meaning ''World'' in their own languages. Where the ancient words derived from is unknown to historians currently.  
The [[XXX|modern XXX]] word ''Gentu'' developed from the [[old XXX]] word most often spelled Jĕneses, and the [[old XXX]] phrase spelled Rėlyu, both words and phrases meaning ''World'' in their own languages. Where the ancient words derived from is unknown to historians currently.  


Historically, ''gentu'' has been written in lowercase. From early [[Middle XXX]], its definite sense as "the globe" was expressed as ''gentu''. By Early Modern XXX, many nouns were capitalized, and ''gentu'' was also written ''Gentu'', particularly when referenced along with other heavenly bodies. {{wp|House styles}} now vary: [[XXX spelling]] recognizes the lowercase form as the most common, with the capitalized form an acceptable variant. Another convention capitalizes "Gentu" when appearing as a name (for example, "Gentu's atmosphere") but writes it in lowercase when preceded by the (for example, "the atmosphere of gentu"). It almost always appears in lowercase in colloquial expressions such as "where on gentu are you?"
Historically, ''gentu'' has been written in lowercase. From early [[Middle XXX]], its definite sense as "the globe" was expressed as ''gentu''. By Early Modern XXX, many nouns were capitalized, and ''gentu'' was also written ''Gentu'', particularly when referenced along with other heavenly bodies. {{wp|House styles}} now vary: [[XXX spelling]] recognizes the lowercase form as the most common, with the capitalized form an acceptable variant. Another convention capitalizes "Gentu" when appearing as a name (for example, "Gentu's atmosphere") but writes it in lowercase when preceded by the (for example, "the atmosphere of gentu"). It almost always appears in lowercase in colloquial expressions such as "where on gentu are you?"
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== Geography ==
== Geography ==
=== Tectonic Plates ===
[[File:Tectonic Plates.png|thumb|Gentu's major and minor tectonic plates. Their movements and recent volcanic activities are also shown.]]
Gentu's outer layer, the {{wp|lithosphere}}, is divided into {{wp|tectonic plate}}s. It is agreed that there are [[Major plates of Gentu|9 major plates]] currently in existence: the Oranish, Naphtoran, Ingentric, Hesterish, Northern, North Domican, South Domican, Aralonan, and Central Nullaric Plates. These plates make up the majority of the planet's {{wp|continental crust|continental}} and {{wp|oceanic crust}}, though there are approximately two dozen smaller and minor plates which inhabit spaces between the larger plates; the largest of which include the Central Domican, Aquamic, Alabon, Hessan, Gaben, North Flonesian, Le Hato, Sudinique, and Peuterra Plates.
=== Oceans and Continents ===


[[File:Continent map.png|thumb|{{{align|right}}}|{{{size|300px}}}<!--
[[File:Continent map.png|thumb|{{{align|right}}}|{{{size|300px}}}<!--
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Gentu is made up of eight continents, [[North Domica|North]] and [[South Domica]], [[Flonesia]], [[Trimeshia]], [[Naphtora]], [[Alabon]], [[Hesterath]], and [[Oranland]]. The largest rainforest is the [[XXX rainforest]] in [[South Domica]]. The tallest mountain is [[Mount XXX]] at the border of [[Hesterath]] and [[Oranland]] with an elevation of 9,147.09 meters.
Most of Gentu's surface is {{wp|ocean}}s and {{wp|continent}}s. The 6 oceans are the Aquamic, North and South Nullaric, Ingentric, Southern, and Northern Oceans. While the 8 continents are the [[North Domica|North]] and [[South Domica]], [[Flonesia]], [[Trimeshia]], [[Naphtora]], [[Alabon]], [[Hesterath]], and [[Oranland]].


''More to be Added''
Due to Gentu's tectonics and geological activity, its surface is made up of {{wp|ocean trench}}es, {{wp|plateau}}s, {{wp|mountain range}}s, and other forms of {{wp|topography}}. The deepest location underwater is the XXX of the XXX in the [[North Nullaric Ocean]] with a depth of XXX. Gentu's highest mountain above sea level is the Mount XXX in the [[Limu mountain range]] at the border of [[Hesterath]] and [[Oranland]] with an elevation of 9,147 m (30,010 ft).
 
''TBA''


=== Countries ===
=== Countries ===

Revision as of 10:28, 21 April 2022

Gentu
Gentu and Cynthia new.png
Gentu and its moon, photo taken from the Xenophus 2 Mission in 2005.
Designations
Gentǔ, Terra, The World
Orbital characteristics
Epoch Hodiernus
Aphelion152100000 km (94500000 mi)
Perihelion147095000 km (91401000 mi)
149598023 km (92955902 mi)
Eccentricity~0.0167086
365 d (12.0 months)
29.78 km/s (18.50 mi/s)
358.617°
Satellites1 natural satellite: Cynthia
2,000+ operational artificial satellites
Physical characteristics
Mean radius
6,306.9 km
Equatorial radius
6378.1 km (3963.2 mi)
Polar radius
6356.8 km (3949.9 mi)
Flattening0.0033528
Circumference40075.017 km (24901.461 mi) (equatorial)
40007.86 km (24859.73 mi) (meridional)
510,072,000km2
(316,944,000 mi2)
Volume1.08321 × 1012km3
Mass5.97237 x 1024 kg
Mean density
5.514 g/cm3
9.807 m/s2
0.3307
11.186 km/s (6.951 mi/s)
0.99726968 d (23.934472 h)
Equatorial rotation velocity
0.4651 km/s (0.2890 mi/s)
23.4392811°
Albedo0.367 geometric
0.306 Bond
Surface temp. min mean max
Celsius −89.2 °C 14.9 °C 56.9 °C
Fahrenheit −128 °F 58.7 °F 134.3 °F
Atmosphere
Surface pressure
101.325 kPa (at MSL)
Composition by volume78.08% nitrogen (N2) (dry air)
20.95% oxygen (O2)
0.930% argon
0.039% carbon dioxide (climate-variable)

Gentu, also known as Gentǔ, or Terra, is the third planet from the Sun and the only astronomical object known to harbour life. While large amounts of water can be found throughout the Gentu System, only Gentu sustains liquid surface water. About 67% of Gentu's surface is made up of the ocean. The remaining 33% of Gentu's surface is land, consisting of continents and islands. Gentu's surface layer is formed of several slowly moving tectonic plates, interacting to produce mountain ranges, volcanoes and earthquakes.

Gentu formed over 4.5 billion years ago. During the first billion years of Gentu's history, the ocean formed and then life developed within it. the modern Humans emerged 250,000 years ago and have reached a population of almost 12 billion today. Humans depend on Gentu's biosphere and natural resources for their survival, but have increasingly impacted Gentu's environment. Today, humanity's impact on Gentu's climate, soils, waters and ecosystems is unsustainable, threatening people's lives and causing widespread extinction of other life.

Etymology

The modern XXX word Gentu developed from the old XXX word most often spelled Jĕneses, and the old XXX phrase spelled Rėlyu, both words and phrases meaning World in their own languages. Where the ancient words derived from is unknown to historians currently.

Historically, gentu has been written in lowercase. From early Middle XXX, its definite sense as "the globe" was expressed as gentu. By Early Modern XXX, many nouns were capitalized, and gentu was also written Gentu, particularly when referenced along with other heavenly bodies. House styles now vary: XXX spelling recognizes the lowercase form as the most common, with the capitalized form an acceptable variant. Another convention capitalizes "Gentu" when appearing as a name (for example, "Gentu's atmosphere") but writes it in lowercase when preceded by the (for example, "the atmosphere of gentu"). It almost always appears in lowercase in colloquial expressions such as "where on gentu are you?"

Chronology

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Gentu-Cynthia System

Characteristics
Full moon as seen from Earth's Northern Hemisphere
Diameter 3,474.8 km
Mass 7.349×1022 kg
Semi-major axis 384,400 km
Orbital period 27d 7h 43.7m

Cynthia is a relatively large, terrestrial, planet-like natural satellite, with a diameter about one-quarter of Gentu's. It is the largest moon in the Gentu System relative to the size of its planet, although XXX is larger relative to the dwarf planet XXX. The most widely accepted theory of the Cynthia's origin, the giant-impact hypothesis, states that it formed from the collision of a Gentu-size protoplanet called Gaia with the early Gentu. This hypothesis explains (among other things) Cynthia's relative lack of iron and volatile elements and the fact that its composition is nearly identical to that of Earth's crust.

The gravitational attraction between Gentu and Cynthia causes tides on Gentu. The same effect on Gentu has led to its tidal locking: its rotation period is the same as the time it takes to orbit Gentu. As a result, it always presents the same face to the planet. As Cynthia orbits Gentu, different parts of its face are illuminated by the Sun, leading to the lunar phases.

Cynthia may have dramatically affected the development of life by moderating the planet's climate. Paleontological evidence and computer simulations show that Gentu's axial tilt is stabilized by tidal interactions with Cynthia. Some theorists think that without this stabilization against the torques applied by the Sun and planets to Gentu's equatorial bulge, the rotational axis might be chaotically unstable, exhibiting large changes over millions of years, as is the case for XXX, though this is disputed.

Asteroids and artificial satellites

Gentu's co-orbital asteroids population consists of quasi-satellites, and XXX. There are at least five quasi-satellites, including XXX. A XXX asteroid companion, XXX, is librating around the leading Lagrange triangular point, L4, in Gentu's orbit around the Sun. The tiny near-Gentu asteroid XXX makes close approaches to the Gentu-Cynthia system roughly every forty years. During these approaches, it can orbit Gentu for brief periods of time.

2021, there are 5,627 operational, human-made satellites orbiting Gentu. There are also inoperative satellites, including Xenophus 1, the oldest satellite currently in orbit, and over 16,000 pieces of tracked space debris. Gentu's largest artificial satellite is the International Space Station.

Life on Gentu

Fungi are one of the kingdoms of life on Gentu.

A planet's life forms inhabit ecosystems, whose total forms the biosphere. The biosphere is divided into a number of biomes, inhabited by broadly similar plants and animals. On land, biomes are separated primarily by differences in latitude, height above sea level and humidity. Terrestrial biomes lying within the Arctic or Antarctic Circles, at high altitudes or in extremely arid areas are relatively barren of plant and animal life; species diversity reaches a peak in humid lowlands at equatorial latitudes. Estimates of the number of species on Gentu today vary; most species have not been described. Over 99% of all species that ever lived on Gentu are extinct.

Extreme weather, such as tropical cyclones (including hurricanes and typhoons), occurs over most of Gentu's surface and has a large impact on life in those areas. From 1980 to 2000, these events caused an average of 11,800 human deaths per year. Many places are subject to earthquakes, landslides, tsunamis, volcanic eruptions, tornadoes, blizzards, floods, droughts, wildfires, and other calamities and disasters. Human impact is felt in many areas due to pollution of the air and water, acid rain, loss of vegetation, loss of wildlife, species extinction, soil degradation, soil depletion and erosion. Human activities release greenhouse gases into the atmosphere which cause global warming. This is driving changes such as the Great Retreat, and global rise in average sea levels, increased risk of drought and wildfires, and migration of species to colder areas.

Geography

Tectonic Plates

Gentu's major and minor tectonic plates. Their movements and recent volcanic activities are also shown.

Gentu's outer layer, the lithosphere, is divided into tectonic plates. It is agreed that there are 9 major plates currently in existence: the Oranish, Naphtoran, Ingentric, Hesterish, Northern, North Domican, South Domican, Aralonan, and Central Nullaric Plates. These plates make up the majority of the planet's continental and oceanic crust, though there are approximately two dozen smaller and minor plates which inhabit spaces between the larger plates; the largest of which include the Central Domican, Aquamic, Alabon, Hessan, Gaben, North Flonesian, Le Hato, Sudinique, and Peuterra Plates.

Oceans and Continents

The eight continents of Gentu:

Most of Gentu's surface is oceans and continents. The 6 oceans are the Aquamic, North and South Nullaric, Ingentric, Southern, and Northern Oceans. While the 8 continents are the North and South Domica, Flonesia, Trimeshia, Naphtora, Alabon, Hesterath, and Oranland.

Due to Gentu's tectonics and geological activity, its surface is made up of ocean trenches, plateaus, mountain ranges, and other forms of topography. The deepest location underwater is the XXX of the XXX in the North Nullaric Ocean with a depth of XXX. Gentu's highest mountain above sea level is the Mount XXX in the Limu mountain range at the border of Hesterath and Oranland with an elevation of 9,147 m (30,010 ft).

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Countries

Below are listed the known countries that have formed in Gentu.

Flag CoA/Seal Short and formal names Capital Population Government
Auralia Flag.png Auralia COA.png Auralia - Auralian Commonwealth Ironey 19,258,000 Parliamentary elective monarchy
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