Verri - Revision history

The Minmus Derp at 21:32, July 19, 2025

2025-07-19T21:32:50Z

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	{{Silky Way\|~~add_hatnote_links~~=no}}{{Vernarca Nebula}}{{Infobox World		{{Silky Way\|use_hatnote_links=no}}{{Vernarca Nebula}}{{Infobox World
	\| title1 = '''Verri'''		\| title1 = '''Verri'''
	\| image1 = Verri.png		\| image1 = Verri.png

The Minmus Derp at 21:32, July 19, 2025

2025-07-19T21:32:17Z

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	{{Silky Way}}{{Vernarca Nebula}}{{Infobox World		{{Silky Way\|add_hatnote_links=no}}{{Vernarca Nebula}}{{Infobox World
	\| title1 = '''Verri'''		\| title1 = '''Verri'''
	\| image1 = Verri.png		\| image1 = Verri.png

The Minmus Derp at 02:17, July 6, 2025

2025-07-06T02:17:51Z

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	{{Silky Way}}{{Infobox World		{{Silky Way}}{{Vernarca Nebula}}{{Infobox World
	\| title1 = '''Verri'''		\| title1 = '''Verri'''
	\| image1 = Verri.png		\| image1 = Verri.png

The Minmus Derp at 07:12, June 6, 2025

2025-06-06T07:12:02Z

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	\| trade_partners = [[Elzir System]], [[Relka System]]		\| trade_partners = [[Elzir System]], [[Relka System]]
	\| affiliation = [[File:Vernarcan Federation Flag.png\|30px]] [[Vernarcan Federation]]		\| affiliation = [[File:Vernarcan Federation Flag.png\|30px]] [[Vernarcan Federation]]
	*[[File:~~DelnarFlag~~.png\|30px]] [[Delnar Empire]]		*[[File:Delnar Flag.png\|30px]] [[Delnar Empire]]
	}}The lone planet of the [[Delnar System]], '''Verri''' is the homeworld of the [[Verna]] species, capital of the [[Delnar Empire]], and a key world within the [[Vernarcan Federation]]. Verri is one of a few examples of a world possessing methane-solvent life, mostly found in its polar lakes, and is also arguably one of the smallest and driest worlds to support intelligent life with only 10.6% of its surface submerged.		}}The lone planet of the [[Delnar System]], '''Verri''' is the homeworld of the [[Verna]] species, capital of the [[Delnar Empire]], and a key world within the [[Vernarcan Federation]]. Verri is one of a few examples of a world possessing methane-solvent life, mostly found in its polar lakes, and is also arguably one of the smallest and driest worlds to support intelligent life with only 10.6% of its surface submerged.
	==Physical Characteristics==		==Physical Characteristics==

The Minmus Derp at 07:11, June 6, 2025

2025-06-06T07:11:30Z

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	\| trade_partners = [[Elzir System]], [[Relka System]]		\| trade_partners = [[Elzir System]], [[Relka System]]
	\| affiliation = [[File:Vernarcan Federation Flag.png\|30px]] [[Vernarcan Federation]]		\| affiliation = [[File:Vernarcan Federation Flag.png\|30px]] [[Vernarcan Federation]]
	*[[File:~~UnknownFlag~~.png\|30px]] [[Delnar Empire]]		*[[File:DelnarFlag.png\|30px]] [[Delnar Empire]]
	}}The lone planet of the [[Delnar System]], '''Verri''' is the homeworld of the [[Verna]] species, capital of the [[Delnar Empire]], and a key world within the [[Vernarcan Federation]]. Verri is one of a few examples of a world possessing methane-solvent life, mostly found in its polar lakes, and is also arguably one of the smallest and driest worlds to support intelligent life with only 10.6% of its surface submerged.		}}The lone planet of the [[Delnar System]], '''Verri''' is the homeworld of the [[Verna]] species, capital of the [[Delnar Empire]], and a key world within the [[Vernarcan Federation]]. Verri is one of a few examples of a world possessing methane-solvent life, mostly found in its polar lakes, and is also arguably one of the smallest and driest worlds to support intelligent life with only 10.6% of its surface submerged.
	==Physical Characteristics==		==Physical Characteristics==

The Minmus Derp at 05:44, April 4, 2025

2025-04-04T05:44:18Z

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	==History==		==History==
	===Formation===		===Formation===
			The [[Delnar System]] and thus Verri formed around 2.2 billion years ago. At this time, [[Sil]] was far, far away in the inner system, and Verri stood alone as its icy mass slowly grew.
	===Evolution of Life===		===Evolution of Life===
	===Verna Civilization===		===Verna Civilization===

The Minmus Derp: /* Ecosystem */

2025-04-03T05:55:50Z

Ecosystem

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	==Ecosystem==		==Ecosystem==
	By some standards, Verri is a subhabitable planet. Much of its surface hosts minimal native life beyond hardy plants, animals, and bacteria. However, these harsh conditions result in a highly diverse ecosystem, and the separation of the northern and southern seas causes great difference between their life forms. Due to the expansion of the [[Verna]] species, the Verrin biosphere has descendants across the stars from Pilani to Taminar.		By some standards, Verri is a subhabitable planet. Much of its surface hosts minimal native life beyond hardy plants, animals, and bacteria. However, these harsh conditions result in a highly diverse ecosystem, and the separation of the northern and southern seas causes great difference between their life forms. Due to the expansion of the [[Verna]] species, the Verrin biosphere has descendants across the stars from Pilani to Taminar.

			Uniquely, Verrin life evolved twice in the northern and southern seas, with very little connective history. Verri's ecosystem has been shaping the global environment and inhabiting every available niche, forming a merged biosphere of the twin trees of life unique in the known galaxy. As this has been occurring, this life has impacted the physical nature of the planet, modifying the atmospheric composition and even landforms and makeup of the seas. Numerous biomes exist on Verri's surface, from arid cryovolcanoes to deep methane seas, varying over latitude and sometimes elevation. Verri's diversity and biomass peaks on and near the shores of the planet's seas, while the arid equatorial regions have almost none.

			Complex organic molecules which make up Verrin life are allowed to interact efficiently within the planet's semi-plentiful liquid hydrocarbon mixtures. Sunlight from [[Delnar]] provides enough meager energy to allow life to conduct such reactions, if slowly, and thus sustain a metabolism, through the consumption of nutrients.

	==Subglacial Ocean==		==Subglacial Ocean==

The Minmus Derp: /* Ecosystem */

2025-04-03T05:22:23Z

Ecosystem

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	Steep-sided lakes in the southern hemisphere resemble certain kinds of volcanic craters, created by explosive subterranean eruptions. The most obvious and current cryovolcanism on Verri is the Donatra Complex, including three mountains, a large depression, and a system of flow-like features. Antra Mons within the complex is the highest mountain on the planet. The presence of Argon-40 in Verri's atmosphere is also caused by cryovolcanism bringing it from where its produced by potassium decay in the core up to the surface.		Steep-sided lakes in the southern hemisphere resemble certain kinds of volcanic craters, created by explosive subterranean eruptions. The most obvious and current cryovolcanism on Verri is the Donatra Complex, including three mountains, a large depression, and a system of flow-like features. Antra Mons within the complex is the highest mountain on the planet. The presence of Argon-40 in Verri's atmosphere is also caused by cryovolcanism bringing it from where its produced by potassium decay in the core up to the surface.
	==Ecosystem==		==Ecosystem==
			By some standards, Verri is a subhabitable planet. Much of its surface hosts minimal native life beyond hardy plants, animals, and bacteria. However, these harsh conditions result in a highly diverse ecosystem, and the separation of the northern and southern seas causes great difference between their life forms. Due to the expansion of the [[Verna]] species, the Verrin biosphere has descendants across the stars from Pilani to Taminar.

	==Subglacial Ocean==		==Subglacial Ocean==
	Verri's interior remains hot enough for a substantial liquid layer composed of "magma" made of water and ammonia between the Ice I<sub>h</sub> crust and deeper layers made of higher pressure forms of ice. The presence of ammonia makes it possible for the ocean to remain liquid even as low as 176 K within Verri's structure. Surface features on Verri systematically shift over time, by up to 30 kilometers over two years, proving that the planet's rigid crust is completely decoupled from the core.		Verri's interior remains hot enough for a substantial liquid layer composed of "magma" made of water and ammonia between the Ice I<sub>h</sub> crust and deeper layers made of higher pressure forms of ice. The presence of ammonia makes it possible for the ocean to remain liquid even as low as 176 K within Verri's structure. Surface features on Verri systematically shift over time, by up to 30 kilometers over two years, proving that the planet's rigid crust is completely decoupled from the core.

The Minmus Derp at 15:57, March 29, 2025

2025-03-29T15:57:25Z

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	\| image2 = VerriMap.png		\| image2 = VerriMap.png
	\| caption-image2 = A map of Verri		\| caption-image2 = A map of Verri
	\| article_creator = [[User:The Minmus Derp]] (10/01/2025)		\| article_creator = [[User:The Minmus Derp\|The Minmus Derp]] (10/01/2025)
	\| scope = [[Scope:Silky Way\|Silky Way]]		\| scope = [[Scope:Silky Way\|Silky Way]]
	\| setting = [[Silky Way]]		\| setting = [[Silky Way]]
	\| author = [[User:The Minmus Derp]] (10/01/2025)		\| author = [[User:The Minmus Derp\|The Minmus Derp]] (10/01/2025)
	\| galaxy = [[Silky Way]]		\| galaxy = [[Silky Way]]
	\| distance_from_galactic_center = ~55,000 light-years		\| distance_from_galactic_center = ~55,000 light-years
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	\| driest_region = Equatorial deserts		\| driest_region = Equatorial deserts
	\| wettest_region = Polar regions		\| wettest_region = Polar regions
	\| capital_city = ~~Vernasi~~		\| capital_city = Ssaa
	\| number_of_moons = 5		\| number_of_moons = 5
	\| major_moons = *[[Sil]]		\| major_moons = *[[Sil]]
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	==Ecosystem==		==Ecosystem==
	==Subglacial Ocean==		==Subglacial Ocean==
			Verri's interior remains hot enough for a substantial liquid layer composed of "magma" made of water and ammonia between the Ice I<sub>h</sub> crust and deeper layers made of higher pressure forms of ice. The presence of ammonia makes it possible for the ocean to remain liquid even as low as 176 K within Verri's structure. Surface features on Verri systematically shift over time, by up to 30 kilometers over two years, proving that the planet's rigid crust is completely decoupled from the core.

			Due to the subglacial ocean's isolation from both the surface and the rest of the universe at large, it is unlikely that any form of native life resides within it. Being capped on both sides by ice means that no black smokers or other life-nucleating sites can exist.
	==History==		==History==
	===Formation===		===Formation===

The Minmus Derp at 05:43, January 25, 2025

2025-01-25T05:43:24Z

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	\| maximum_liquid_body_depth = 890 m		\| maximum_liquid_body_depth = 890 m
	\| landmass_%_coverage = 89.4% – 17,191,896.518 km<sup>2</sup> sea surface area		\| landmass_%_coverage = 89.4% – 17,191,896.518 km<sup>2</sup> sea surface area
	\| atmospheric_pressure = 1.55 atm		\| atmospheric_pressure = 2.55 atm
	\| atmospheric_composition = Variable		\| atmospheric_composition = Variable

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	Verri and Sil, being the largest mass concentration outside of Delnar in their solar system, have a great effect on the other objects within it. Most notably, the barely-spherical dwarf planet of Hygeras is locked in a 3:4 orbital resonance with Verri and Sil, orbiting three times every four times Verri-Sil orbits. Other objects exist in this resonance, but more commonly objects in the 3:2 and 2:1 resonances are found.		Verri and Sil, being the largest mass concentration outside of Delnar in their solar system, have a great effect on the other objects within it. Most notably, the barely-spherical dwarf planet of Hygeras is locked in a 3:4 orbital resonance with Verri and Sil, orbiting three times every four times Verri-Sil orbits. Other objects exist in this resonance, but more commonly objects in the 3:2 and 2:1 resonances are found.
	==Atmosphere==		==Atmosphere==
	Verri is endowed with an impressively thick atmosphere, with a surface pressure of 1.55 atm, and is one of the uncommon objects whose atmospheres are able to support clouds, hazes, and weather. Due to this extensive, hazy atmosphere, Verri's size was initially difficult to determine through visual means especially from afar. This haze also prevented Verri's surface from being seen on most wavelengths, making for disappointing views from the first Verna space missions.		Verri is endowed with an impressively thick atmosphere, with a surface pressure of 2.55 atm, and is one of the uncommon objects whose atmospheres are able to support clouds, hazes, and weather. Due to this extensive, hazy atmosphere, Verri's size was initially difficult to determine through visual means especially from afar. This haze also prevented Verri's surface from being seen on most wavelengths, making for disappointing views from the first Verna space missions.

	Three elements make up the vast majority of Verri's atmosphere: nitrogen, methane, and hydrogen. Uniquely, the precise atmospheric composition varies wildly depending on altitude and latitude due to methane's constant cycling between a gas and liquid in the planet's lower atmosphere. Up in the stratosphere, methane makes up ~97.4% of the atmospheric content, decreasing to 94% nearer to the surface. Methane concentrations are conversely highest near the surface with a fairly constant 4.9% up until 8 km above the datum level. After that point, concentrations decrease as altitude rises, down to around 1.4% amid the haze layers. Methane can also be more commonly found near Verri's winter pole, caused by surface evaporation.		Three elements make up the vast majority of Verri's atmosphere: nitrogen, methane, and hydrogen. Uniquely, the precise atmospheric composition varies wildly depending on altitude and latitude due to methane's constant cycling between a gas and liquid in the planet's lower atmosphere. Up in the stratosphere, methane makes up ~97.4% of the atmospheric content, decreasing to 94% nearer to the surface. Methane concentrations are conversely highest near the surface with a fairly constant 4.9% up until 8 km above the datum level. After that point, concentrations decrease as altitude rises, down to around 1.4% amid the haze layers. Methane can also be more commonly found near Verri's winter pole, caused by surface evaporation.
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	The lakes and seas of Verri are largely restricted to its polar regions, where colder temperatures allow liquid hydrocarbons to permanently exist. Near Verri's southern pole are the Livai Sea, the largest sea, Krali, the second largest sea, and several others including Punga, Vili, and several smaller lakes. Cumulatively, the two largest seas represent roughly 55% of Verri's sea and lake coverage– 9,455,543.1 square kilometers combined. All four of the southern seas have similar levels, showing that they are connected through a groundmethane table similar to groundwater found on warmer planets. The north polar region correspondingly hosts the Ontri sea, the third largest of Verri's seas, and two dry depressions which were once filled with further seas. Additional smaller lakes can be found across the polar regions, mostly stopping at around 70º North and South and covering ~1,800,000 square kilometers. The equatorial regions host very few such lakes, although transient oases pool following large rainstorms. The maximum depth of these seas is only a bit over a kilometer, within the Krali Sea.		The lakes and seas of Verri are largely restricted to its polar regions, where colder temperatures allow liquid hydrocarbons to permanently exist. Near Verri's southern pole are the Livai Sea, the largest sea, Krali, the second largest sea, and several others including Punga, Vili, and several smaller lakes. Cumulatively, the two largest seas represent roughly 55% of Verri's sea and lake coverage– 9,455,543.1 square kilometers combined. All four of the southern seas have similar levels, showing that they are connected through a groundmethane table similar to groundwater found on warmer planets. The north polar region correspondingly hosts the Ontri sea, the third largest of Verri's seas, and two dry depressions which were once filled with further seas. Additional smaller lakes can be found across the polar regions, mostly stopping at around 70º North and South and covering ~1,800,000 square kilometers. The equatorial regions host very few such lakes, although transient oases pool following large rainstorms. The maximum depth of these seas is only a bit over a kilometer, within the Krali Sea.

	Verri's oceanic bodies are composed primarily of methane, with smaller amounts of ethane and dissolved nitrogen. Unlike the consistent compositions of the oceans and lakes of [[Teralla]] and [[Erdath]], percentages vary across different bodies. The Krali Sea has 71% methane, 12% ethane, and 17% nitrogen while the Ontri sea holds only 49% methane, 41% ethane and 10% nitrogen.		Verri's oceanic bodies are composed primarily of methane, with smaller amounts of ethane and dissolved nitrogen. Unlike the consistent compositions of the oceans and lakes of [[Teralla]] and [[Erdath]], percentages vary across different bodies. The Krali Sea has 71% methane, 12% ethane, and 17% nitrogen while the Ontri sea holds only 49% methane, 41% ethane and 10% nitrogen. Due to the seas' comparatively small size, tidal range on Verri due to [[Delnar]]'s gravity is around 0.3 meters.
			===Plains and Dunes===
			The vast majority of Verri's surface is covered by plains of varying levels of monotony. The most extensive are also the most monotonous, the radar-dark Undifferentiated Plains. These plains are younger than everything else on the planet except dunes and some craters, and were likely formed by wind-related processes out of organic-rich sediment.

			More impressive are the vast dune seas mostly found within 40º north or south of the equator. These dunes are generally at least a kilometer wide and spaced 1-4 kilometers apart, with some dunes over 100 times that in length. Dunes can reach impressive heights in Verri's low gravity, up to 200 meters in height. Like the Undifferentiated Plains, dune sand is dominated by organic material of various kinds.
			===Impact Craters===
			Verri, by its nature, has very few impact craters, especially compared to its companion [[Sil]]. Those that are there are much shallower than other worlds, often with floors of dark sediment. The majority of surviving craters can be found in the equatorial dune fields, as a result of oceans which once occupied Verri's polar regions and increased deposition of sediment by rainfall.
			===Cryovolcanism and Tectonics===
			Mountainous ridges on Verri are concentrated in the planet's equatorial regions, but scientists are not clear on whether they form more or are better preserved there or both. These ridges are comparable to terrestrial fold belts, created by horizontal compression, possibly caused by global contraction thickening the ice shell and causing regional uplift of the terrain.

			Steep-sided lakes in the southern hemisphere resemble certain kinds of volcanic craters, created by explosive subterranean eruptions. The most obvious and current cryovolcanism on Verri is the Donatra Complex, including three mountains, a large depression, and a system of flow-like features. Antra Mons within the complex is the highest mountain on the planet. The presence of Argon-40 in Verri's atmosphere is also caused by cryovolcanism bringing it from where its produced by potassium decay in the core up to the surface.
	==Ecosystem==		==Ecosystem==
	==Subglacial Ocean==		==Subglacial Ocean==