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We also have some public domain images (from NASA) available here: [[http:// | We also have some public domain images (from NASA) available here: [[http:// | ||
- | {{public_domain: | + | {{public_domain: |
== Other Useful Images === | == Other Useful Images === | ||
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* [[planet: | * [[planet: | ||
* [[system: | * [[system: | ||
- | * [[system: | ||
- | * [[system: | ||
* [[planet: | * [[planet: | ||
* [[planet: | * [[planet: | ||
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====== Star Army Guide to Types of Planets ====== | ====== Star Army Guide to Types of Planets ====== | ||
| :!: **The following article is currently NOT APPROVED for in-character usage.** | | | :!: **The following article is currently NOT APPROVED for in-character usage.** | | ||
- | As seen on SARP's [[http:// | + | As seen on SARP's [[http:// |
The broadest way to classify planets is by their overall size. While size alone doesn' | The broadest way to classify planets is by their overall size. While size alone doesn' | ||
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Since helium and hydrogen are the two most common elements in the universe, worlds that are large enough to retain helium usually, but not always, grow large enough to also retain hydrogen, and become gas giants. ' | Since helium and hydrogen are the two most common elements in the universe, worlds that are large enough to retain helium usually, but not always, grow large enough to also retain hydrogen, and become gas giants. ' | ||
- | Gas giants themselves come in many sizes, from ten times the mass of a standard world to thousands of times that. Their moons are more likely to draw interest than the gas giant itself, though the radiation belts of gas giants can pose a significant hazard. The largest gas giants grow increasingly dense, eventually reaching the point where they ignite helium fusion in their cores, and become brown dwarf stars.\\ | + | Gas giants themselves come in many sizes, from ten times the mass of a standard world to thousands of times that. Their moons are more likely to draw interest than the gas giant itself, though the radiation belts of gas giants can pose a significant hazard. The largest gas giants grow increasingly dense, eventually reaching the point where they ignite helium fusion in their cores, and become brown dwarf stars. |
=== Units === | === Units === | ||
- | Before we can really talk in detail about exoplanets we need to have an understanding of units we use for Density, Temperature, | + | Before we can really talk in detail about exoplanets we need to have an understanding of units we use for Density, Temperature, |
- | The Average Density of a Planet is of course roughly a planets mass divided by the Approximate Volume it would have it it was a perfect sphere. | + | The Average Density of a Planet is of course roughly a planets mass divided by the Approximate Volume it would have it it was a perfect sphere. |
- | The Average Surface Temperature of a planet is measured in either degrees Celsius or degrees Kelvin. | + | The Average Surface Temperature of a planet is measured in either degrees Celsius or degrees Kelvin. |
The Planetary Mass like all masses is first and foremost measured in units of kilograms. | The Planetary Mass like all masses is first and foremost measured in units of kilograms. | ||
The table below highlights conversions between various mass units | The table below highlights conversions between various mass units | ||
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- planet with a silicon crust but completely lacking in a magnetic iron core, meaning it lack at magnetic field | - planet with a silicon crust but completely lacking in a magnetic iron core, meaning it lack at magnetic field | ||
=== Coreless Lava Worlds === | === Coreless Lava Worlds === | ||
- | Examples: Venus\\ | + | Examples: Venus |
=== Coreless Rocky Deserts === | === Coreless Rocky Deserts === | ||
- | Examples: Moon and most other planet barren moons\\ | + | Examples: Moon and most other planet barren moons |
==== Habitable Earth-like Planets ==== | ==== Habitable Earth-like Planets ==== | ||
- | Examples: Earth\\ | + | Examples: Earth |
- | Suggestions? | + | Suggestions? |
* [[planet: | * [[planet: | ||
=== Forest Planets === | === Forest Planets === | ||
- | Suggestions? | + | Suggestions? |
=== Swamp Planets === | === Swamp Planets === | ||
- | Suggestions? | + | Suggestions? |
==== Ice Rock and Ice Planets ==== | ==== Ice Rock and Ice Planets ==== | ||
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[[wp> | [[wp> | ||
- | Ocean planets; however, tend to cross over also more into other categories. | + | Ocean planets; however, tend to cross over also more into other categories. |
==== General Ocean World ==== | ==== General Ocean World ==== | ||
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^ **Semi-major Axis**^ > 1 AU ^ | ^ **Semi-major Axis**^ > 1 AU ^ | ||
- | Examples: Neptune and Uranus\\ | + | Examples: Neptune and Uranus |
===== Hot Neptune ===== | ===== Hot Neptune ===== | ||
^ **Semi-major Axis**^ < 1 AU ^ | ^ **Semi-major Axis**^ < 1 AU ^ |