Twilight Zone World
A Twilight Zone World or Ribbon World is tidally locked to a star with a temperate band at the Twilight Zone, plus a Hot region (hemisphere) facing the Primary and a Cold region (hemisphere) away from the Primary.
- It can be classified on a Main World or non-MW trade classification.
- It is a Planet or world type.
Description (Specifications)[edit]
Ribbon worlds are tidally locked planets, aligned with a star, with one very hot side and one very cold side. Because of this, the habitable zones of these planets forms a thin ribbon around the equator.
Planetary Characteristics[edit]
Twilight Zone Worlds do not generally retain natural satellites.
| Type | Code | Size | Atm | Hyd | Pop | Gov | Law | Remarks |
|---|---|---|---|---|---|---|---|---|
| Locked World | Lk | -- | -- | -- | -- | -- | -- | Locked close satellite. |
| Twilight Zone World | Tz | -- | -- | -- | -- | -- | -- | Twilight Zone Orbit 0-1 |
| Satellite World | Sa | -- | -- | -- | -- | -- | -- | Satellite or moon. |
| Double World | None | -- | -- | -- | -- | -- | -- | Double-planet mainworld. |
| Doughnut World | None | -- | -- | -- | -- | -- | -- | Toroidal world. |
| Ellipsoid World | None | -- | -- | -- | -- | -- | -- | Egg-shaped world. |
| Mobile World | None | -- | -- | -- | -- | -- | -- | Mobile world, whether artificial or natural, with added engines. |
| Ring World | None | -- | -- | -- | -- | -- | -- | Artificial ring world. Megastructure. |
| Rogue World | None | -- | -- | -- | -- | -- | -- | Extrasystemic world. |
| Sphere World | None | -- | -- | -- | -- | -- | -- | Dyson series worlds. Megastructure. |
Probably Planetary Orbit & Climate[edit]
No information yet available.
History & Background (Dossier)[edit]
An example map of a twilight zone world.
- One side of the world permanently faces towards the star.
- One side of the world permanently faces away from the star.
- Between the two is a twilight zone, where the star eternally hangs on the horizon.
Ovoid Shape[edit]
The star's gravity pulls a tidally locked world into an ovoid shape, with the pointy side permanently facing towards the star and the more rounded side permanently facing away.
- The ovoid shape of rocky tidally locked worlds is not usually discernable with the naked eye.
- Hot gas giants, orbiting extremely closely to their stars, may have a very exaggerated ovoid shape.
Worlds & Sectors (Astrography)[edit]
This type of world is found throughout Charted Space.
World Listing[edit]
The following systems and worlds are associated with this world type:
| startbacknext(12 listed) |
References & Contributors (Sources)[edit]
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- Marc Miller. Worlds and Adventures (Game Designers Workshop, 1977), TBD.Marc Miller, Robert Eaglestone, Don McKinney. Worlds and Adventures (Far Future Enterprises, 2019), TBD.
- Marc Miller. Scouts (Game Designers Workshop, 1983), TBD.
- T5: Core rules
- External Link: Beowolf's Libary Data Website dead link
- Author & Contributor: Morandir Armson