Planets: Difference between revisions

Line 5:

Some astronomical objects that meet the official criteria for planet status yet also happen to orbit a planet are instead classified as natural satellites or [[moons]]. When a moon's orbit expands to the point that the [[barycentre]] of the planet-moon system falls outside the center of the planet, then both bodies would be considered planets and part of a double-planet system.<ref>https://www.universetoday.com/85749/is-the-moon-a-planet/</ref>

== [[Terrestrial Planet]]s ==

==[[Terrestrial Planet]]s==

{| class="wikitable unsortable" style="text-align:center;" border="1"

{|class="wikitable unsortable" style="text-align:center;" border="1"

|-

!Image

Line 28:

|''Typically formed in the cooler regions of a star system these worlds have a small metal core and thick rocky mantle with a crust of very deep ice. Geological activity is common in these worlds because of the large quantities of volatiles in the crust, often creating a thin, sometimes seasonal atmosphere.''

|-

|High metal content world

|Common

Line 55:

== [[Gas Giant]]s ==

{| class="~~article-table~~" ~~cellspacing~~="~~1" cellpadding="1~~" border="1"

{| class="wikitable unsortable" style="text-align:center;" border="1"

|-

!Image

!Type

!Rarity

!Description

|-

~~| rowspan="2"~~|[[File:Class I gas giant Wredguia HY-G c24-12 1.png|thumb|center]]

|[[File:Class I gas giant Wredguia HY-G c24-12 1.png|thumb|center]]

|Class I gas giant

|Common

|''Class I or Jovian gas giants have primarily hydrogen and helium atmospheres. Colouration comes from clouds in the upper atmosphere of ammonia, water vapour, hydrogen sulphide, phosphine and sulphur. The temperature at the top of their upper cloud layers is typically less than 150 K.''

|-

| colspan="2"|''Class I or Jovian gas giants have primarily hydrogen and helium atmospheres. Colouration comes from clouds in the upper atmosphere of ammonia, water vapour, hydrogen sulphide, phosphine and sulphur. The temperature at the top of their upper cloud layers is typically less than 150 K.''

|[[File:Class II.png|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Class II.png|thumb|center]]

|Class II gas giant

|Rare

|''Class II gas giants have primarily hydrogen and helium atmospheres. Water vapour in the upper cloud layers gives them a much higher albedo. Their surface temperature is typically up to or around 250 K.''

|-

| colspan="2"|''Class II gas giants have primarily hydrogen and helium atmospheres. Water vapour in the upper cloud layers gives them a much higher albedo. Their surface temperature is typically up to or around 250 K.''

|[[File:Class III gas giant HIP 99152 1 a.png|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Class III gas giant HIP 99152 1 a.png|thumb|center]]

|Class III gas giant

|Common

|''Class III gas giants have primarily hydrogen and helium atmospheres without distinctive cloud layers. Their surface temperature typically ranges between 350 K and 800 K. They are primarily blue in colour because of optical scattering in the atmosphere - with the chance of wispy cloud layers from sulphides and chlorides.''

|-

| colspan="2"|''Class III gas giants have primarily hydrogen and helium atmospheres without distinctive cloud layers. Their surface temperature typically ranges between 350 K and 800 K. They are primarily blue in colour because of optical scattering in the atmosphere - with the chance of wispy cloud layers from sulphides and chlorides.''

|[[File:Gas-Giant-Class-IV-180px.png|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Gas-Giant-Class-IV-180px.png|thumb|center]]

|Class IV gas giant

|Uncommon

|''Class IV gas giants have primarily hydrogen and helium atmospheres with carbon monoxide and upper clouds of alkali metals above lower cloud layers of silicates and iron compounds, hence he brighter colours. The temperature of their upper cloud layers is typically above 900 K.''

|-

| colspan="2"|''Class IV gas giants have primarily hydrogen and helium atmospheres with carbon monoxide and upper clouds of alkali metals above lower cloud layers of silicates and iron compounds, hence he brighter colours. The temperature of their upper cloud layers is typically above 900 K.''

|[[File:Gas Giant Class V.png|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Gas Giant Class V.png|thumb|center]]

|Class V gas giant

|Very Rare

|''Class V gas giants have primarily hydrogen and helium atmospheres, with thick clouds of silicates and iron compounds, even metallic iron.They are the hottest type of gas giants with temperatures at their upper cloud decks above 1400 K, and much hotter in the lower layers, often emitting a dull glow from the internal heat within.''

|-

|colspan="2"|''Class V gas giants have primarily hydrogen and helium atmospheres, with thick clouds of silicates and iron compounds, even metallic iron.They are the hottest type of gas giants with temperatures at their upper cloud decks above 1400 K, and much hotter in the lower layers, often emitting a dull glow from the internal heat within.''

|[[File:Helium-rich Gas Giant 2.jpg|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Helium-rich Gas Giant 2.jpg|thumb|center]]

|Helium-rich

|Very Rare

|''Helium-rich gas giants have a greatly inflated percentage of helium compared to the hydrogen in their atmosphere. Much of their hydrogen has been lost over time because they have insufficient mass to hold on to it. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate.''

|-

| colspan="2"|''Helium-rich gas giants have a greatly inflated percentage of helium compared to the hydrogen in their atmosphere. Much of their hydrogen has been lost over time because they have insufficient mass to hold on to it. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate.''

|[[File:Helium-rich Gas Giant.png|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Helium-rich Gas Giant.png|thumb|center]]

|Helium gas giant

|Very Rare

|''Helium gas giants have primarily a helium atmosphere. They have lost most or all of their hydrogen because they have insufficient mass to hold on to it over time. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate.''

|-

| colspan="2"|''Helium gas giants have primarily a helium atmosphere. They have lost most or all of their hydrogen because they have insufficient mass to hold on to it over time. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate.''

|[[File:Gas giant with ammonia based life.png|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Gas giant with ammonia based life.png|thumb|center]]

|Gas giant with ammonia-based life

|Very Rare

|''Gas giant with ammonia-based life. This is primarily a hydrogen and helium-based atmospheric gas giant, but a little below the surface cloud layers,life exists based in the ammonia-cloud layer. The chemistry of this gaseous region is far from equilibrium, with a surprising excess of oxygen and many carbon-based compounds giving it some vivid colours. As with many such gaseous living systems, it is underpinned by vast quantities of free-floating radioplankton - tiny carbon-based algae, each retaining small quantity of liquid ammonia, extracting their energy from the intense radiation flux.''

|-

| colspan="2"|''Gas giant with ammonia-based life. This is primarily a hydrogen and helium-based atmospheric gas giant, but a little below the surface cloud layers,life exists based in the ammonia-cloud layer. The chemistry of this gaseous region is far from equilibrium, with a surprising excess of oxygen and many carbon-based compounds giving it some vivid colours. As with many such gaseous living systems, it is underpinned by vast quantities of free-floating radioplankton - tiny carbon-based algae, each retaining small quantity of liquid ammonia, extracting their energy from the intense radiation flux.''

|[[File:Water based life gas giant.png|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Water based life gas giant.png|thumb|center]]

|Gas giant with water-based life

|Rare

|''Gas giant with water-based life. This is primarily a hydrogen and helium based atmospheric gas giant, but not far below the surface exists life based in the water-cloud layer just below the atmospheric surface. The chemistry of this gaseous region is far from equilibrium, with a surprising excess of oxygen and many carbon-based compounds giving it some vivid colours. As with many such gaseous living systems, it is underpinned by vast quantities of free-floating radioplankton - tiny carbon-based algae, each retaining small quantity of liquid water, extracting their energy from the intense radiation flux.''

|-

| colspan="2"|''Gas giant with water-based life. This is primarily a hydrogen and helium based atmospheric gas giant, but not far below the surface exists life based in the water-cloud layer just below the atmospheric surface. The chemistry of this gaseous region is far from equilibrium, with a surprising excess of oxygen and many carbon-based compounds giving it some vivid colours. As with many such gaseous living systems, it is underpinned by vast quantities of free-floating radioplankton - tiny carbon-based algae, each retaining small quantity of liquid water, extracting their energy from the intense radiation flux.''

|[[File:Water Giant.png|thumb|center]]

|-

~~| rowspan="2"~~|[[File:Water Giant.png|thumb|center]]

|Water Giant

|Very Rare

|-

|''Water giant. Worlds like this have a large atmosphere made mainly of water vapour. It most likely formed when a large icy body warmed up enough to evaporate a large amount of its surface ice, this would in turn trigger a runaway greenhouse effect leading to a very thick atmosphere made of the evaporated ices.''

~~| colspan="2"~~|''Water giant. Worlds like this have a large atmosphere made mainly of water vapour. It most likely formed when a large icy body warmed up enough to evaporate a large amount of its surface ice, this would in turn trigger a runaway greenhouse effect leading to a very thick atmosphere made of the evaporated ices.''

|}

== Videos ==

==Videos==

File:Elite Dangerous Odyssey - Planetary tech 6.0

Line 127:

Line 119:

</gallery>

== References ==

==References==

[[ru:Планеты]]

@@ Line 5: / Line 5: @@
 Some astronomical objects that meet the official criteria for planet status yet also happen to orbit a planet are instead classified as natural satellites or [[moons]]. When a moon's orbit expands to the point that the [[barycentre]] of the planet-moon system falls outside the center of the planet, then both bodies would be considered planets and part of a double-planet system.<ref>https://www.universetoday.com/85749/is-the-moon-a-planet/</ref>
-== [[Terrestrial Planet]]s ==
+==[[Terrestrial Planet]]s==
-{| class="wikitable unsortable" style="text-align:center;" border="1"
+{|class="wikitable unsortable" style="text-align:center;" border="1"
 |-
 !Image
@@ Line 28: / Line 28: @@
 |''Typically formed in the cooler regions of a star system these worlds have a small metal core and thick rocky mantle with a crust of very deep ice. Geological activity is common in these worlds because of the large quantities of volatiles in the crust, often creating a thin, sometimes seasonal atmosphere.''
 |-
-|[[File:High metal content world Wredguia ZF-F d11-23 1.png|thumb|center]][[File:High metal content world Wredguia ZF-F d11-23 2.png|thumb|center]][[File:High metal content world Wredguia AG-F d11-24 A 1.png|thumb|center]][[File:High metal content world Wredguia HY-G c24-11 A 1.png|thumb|center]]
+|[[File:High metal content world Wredguia ZF-F d11-23 1.png|thumb|center]][[File:High metal content world Wredguia ZF-F d11-23 2.png|thumb|center]][[File:High metal content world Wredguia AG-F d11-24 A 1.png|thumb|center]][[File:High metal content world Wredguia HY-G c24-11 A 1.png|thumb|center]][[File:High metal content world Col 285 Sector KS-T d3-82 8.png|thumb|center]]
 |High metal content world
 |Common
@@ Line 55: / Line 55: @@
 == [[Gas Giant]]s ==
-{| class="article-table" cellspacing="1" cellpadding="1" border="1"
+{| class="wikitable unsortable" style="text-align:center;" border="1"
+|-
 !Image
 !Type
 !Rarity
+!Description
 |-
-| rowspan="2"|[[File:Class I gas giant Wredguia HY-G c24-12 1.png|thumb|center]]
+|[[File:Class I gas giant Wredguia HY-G c24-12 1.png|thumb|center]]
 |Class I gas giant
 |Common
+|''Class I or Jovian gas giants have primarily hydrogen and helium atmospheres. Colouration comes from clouds in the upper atmosphere of ammonia, water vapour, hydrogen sulphide, phosphine and sulphur. The temperature at the top of their upper cloud layers is typically less than 150 K.''
 |-
-| colspan="2"|''Class I or Jovian gas giants have primarily hydrogen and helium atmospheres. Colouration comes from clouds in the upper atmosphere of ammonia, water vapour, hydrogen sulphide, phosphine and sulphur. The temperature at the top of their upper cloud layers is typically less than 150 K.''
+|[[File:Class II.png|thumb|center]]
-|-
-| rowspan="2"|[[File:Class II.png|thumb|center]]
 |Class II gas giant
 |Rare
+|''Class II gas giants have primarily hydrogen and helium atmospheres. Water vapour in the upper cloud layers gives them a much higher albedo. Their surface temperature is typically up to or around 250 K.''
 |-
-| colspan="2"|''Class II gas giants have primarily hydrogen and helium atmospheres. Water vapour in the upper cloud layers gives them a much higher albedo. Their surface temperature is typically up to or around 250 K.''
+|[[File:Class III gas giant HIP 99152 1 a.png|thumb|center]]
-|-
-| rowspan="2"|[[File:Class III gas giant HIP 99152 1 a.png|thumb|center]]
 |Class III gas giant
 |Common
+|''Class III gas giants have primarily hydrogen and helium atmospheres without distinctive cloud layers. Their surface temperature typically ranges between 350 K and 800 K. They are primarily blue in colour because of optical scattering in the atmosphere - with the chance of wispy cloud layers from sulphides and chlorides.''
 |-
-| colspan="2"|''Class III gas giants have primarily hydrogen and helium atmospheres without distinctive cloud layers. Their surface temperature typically ranges between 350 K and 800 K. They are primarily blue in colour because of optical scattering in the atmosphere - with the chance of wispy cloud layers from sulphides and chlorides.''
+|[[File:Gas-Giant-Class-IV-180px.png|thumb|center]]
-|-
-| rowspan="2"|[[File:Gas-Giant-Class-IV-180px.png|thumb|center]]
 |Class IV gas giant
 |Uncommon
+|''Class IV gas giants have primarily hydrogen and helium atmospheres with carbon monoxide and upper clouds of alkali metals above lower cloud layers of silicates and iron compounds, hence he brighter colours. The temperature of their upper cloud layers is typically above 900 K.''
 |-
-| colspan="2"|''Class IV gas giants have primarily hydrogen and helium atmospheres with carbon monoxide and upper clouds of alkali metals above lower cloud layers of silicates and iron compounds, hence he brighter colours. The temperature of their upper cloud layers is typically above 900 K.''
+|[[File:Gas Giant Class V.png|thumb|center]]
-|-
-| rowspan="2"|[[File:Gas Giant Class V.png|thumb|center]]
 |Class V gas giant
 |Very Rare
+|''Class V gas giants have primarily hydrogen and helium atmospheres, with thick clouds of silicates and iron compounds, even metallic iron.They are the hottest type of gas giants with temperatures at their upper cloud decks above 1400 K, and much hotter in the lower layers, often emitting a dull glow from the internal heat within.''
 |-
-|colspan="2"|''Class V gas giants have primarily hydrogen and helium atmospheres, with thick clouds of silicates and iron compounds, even metallic iron.They are the hottest type of gas giants with temperatures at their upper cloud decks above 1400 K, and much hotter in the lower layers, often emitting a dull glow from the internal heat within.''
+|[[File:Helium-rich Gas Giant 2.jpg|thumb|center]]
-|-
-| rowspan="2"|[[File:Helium-rich Gas Giant 2.jpg|thumb|center]]
 |Helium-rich
 |Very Rare
+|''Helium-rich gas giants have a greatly inflated percentage of helium compared to the hydrogen in their atmosphere. Much of their hydrogen has been lost over time because they have insufficient mass to hold on to it. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate.''
 |-
-| colspan="2"|''Helium-rich gas giants have a greatly inflated percentage of helium compared to the hydrogen in their atmosphere. Much of their hydrogen has been lost over time because they have insufficient mass to hold on to it. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate.''
+|[[File:Helium-rich Gas Giant.png|thumb|center]]
-|-
-| rowspan="2"|[[File:Helium-rich Gas Giant.png|thumb|center]]
 |Helium gas giant
 |Very Rare
+|''Helium gas giants have primarily a helium atmosphere. They have lost most or all of their hydrogen because they have insufficient mass to hold on to it over time. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate.''
 |-
-| colspan="2"|''Helium gas giants have primarily a helium atmosphere. They have lost most or all of their hydrogen because they have insufficient mass to hold on to it over time. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate.''
+|[[File:Gas giant with ammonia based life.png|thumb|center]]
-|-
-| rowspan="2"|[[File:Gas giant with ammonia based life.png|thumb|center]]
 |Gas giant with ammonia-based life
 |Very Rare
+|''Gas giant with ammonia-based life. This is primarily a hydrogen and helium-based atmospheric gas giant, but a little below the surface cloud layers,life exists based in the ammonia-cloud layer. The chemistry of this gaseous region is far from equilibrium, with a surprising excess of oxygen and many carbon-based compounds giving it some vivid colours. As with many such gaseous living systems, it is underpinned by vast quantities of free-floating radioplankton - tiny carbon-based algae, each retaining small quantity of liquid ammonia, extracting their energy from the intense radiation flux.''
 |-
-| colspan="2"|''Gas giant with ammonia-based life. This is primarily a hydrogen and helium-based atmospheric gas giant, but a little below the surface cloud layers,life exists based in the ammonia-cloud layer. The chemistry of this gaseous region is far from equilibrium, with a surprising excess of oxygen and many carbon-based compounds giving it some vivid colours. As with many such gaseous living systems, it is underpinned by vast quantities of free-floating radioplankton - tiny carbon-based algae, each retaining small quantity of liquid ammonia, extracting their energy from the intense radiation flux.''
+|[[File:Water based life gas giant.png|thumb|center]]
-|-
-| rowspan="2"|[[File:Water based life gas giant.png|thumb|center]]
 |Gas giant with water-based life
 |Rare
+|''Gas giant with water-based life. This is primarily a hydrogen and helium based atmospheric gas giant, but not far below the surface exists life based in the water-cloud layer just below the atmospheric surface. The chemistry of this gaseous region is far from equilibrium, with a surprising excess of oxygen and many carbon-based compounds giving it some vivid colours. As with many such gaseous living systems, it is underpinned by vast quantities of free-floating radioplankton - tiny carbon-based algae, each retaining small quantity of liquid water, extracting their energy from the intense radiation flux.''
 |-
-| colspan="2"|''Gas giant with water-based life. This is primarily a hydrogen and helium based atmospheric gas giant, but not far below the surface exists life based in the water-cloud layer just below the atmospheric surface. The chemistry of this gaseous region is far from equilibrium, with a surprising excess of oxygen and many carbon-based compounds giving it some vivid colours. As with many such gaseous living systems, it is underpinned by vast quantities of free-floating radioplankton - tiny carbon-based algae, each retaining small quantity of liquid water, extracting their energy from the intense radiation flux.''
+|[[File:Water Giant.png|thumb|center]]
-|-
-| rowspan="2"|[[File:Water Giant.png|thumb|center]]
 |Water Giant
 |Very Rare
-|-
+|''Water giant. Worlds like this have a large atmosphere made mainly of water vapour. It most likely formed when a large icy body warmed up enough to evaporate a large amount of its surface ice, this would in turn trigger a runaway greenhouse effect leading to a very thick atmosphere made of the evaporated ices.''
-| colspan="2"|''Water giant. Worlds like this have a large atmosphere made mainly of water vapour. It most likely formed when a large icy body warmed up enough to evaporate a large amount of its surface ice, this would in turn trigger a runaway greenhouse effect leading to a very thick atmosphere made of the evaporated ices.''
 |}
-== Videos ==
+==Videos==
 <gallery>
 File:Elite Dangerous Odyssey - Planetary tech 6.0
@@ Line 127: / Line 119: @@
 </gallery>
-== References ==
+==References==
-<references />
+<references/>
 [[ru:Планеты]]

Planets: Difference between revisions

Fandom>U Kataka