Niven ring
E94837
A Niven ring is a hypothetical megastructure consisting of a gigantic, rotating ring encircling a star to provide an immense habitable surface on its inner rim.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Dyson ring | 1 |
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
hypothetical megastructure
ⓘ
ringworld ⓘ science fiction concept ⓘ |
| appearsIn | hard science fiction ⓘ |
| category |
fictional technology
ⓘ
hypothetical space habitat ⓘ |
| considered | physically implausible with known materials ⓘ |
| contrastedWith |
Dyson shell
NERFINISHED
ⓘ
O'Neill cylinder ⓘ |
| encircles | star ⓘ |
| hasComponent |
inner rim
ⓘ
outer rim ⓘ |
| hasConstraint |
orbital dynamics constraints
ⓘ
thermal management requirements ⓘ tidal forces from central star ⓘ |
| hasDesignFeature |
continuous day side unless shaded
ⓘ
rotation to simulate gravity ⓘ star-facing inner surface ⓘ |
| hasDimension | circumference on order of planetary orbit ⓘ |
| hasEnvironment | artificially maintained biosphere ⓘ |
| hasFunction | provide habitable surface ⓘ |
| hasLocation | circumstellar space ⓘ |
| hasProperty |
artificial gravity by rotation
ⓘ
gigantic size ⓘ |
| hasShape | ring ⓘ |
| hasStabilityIssue |
off-center drift toward star
ⓘ
radial instability ⓘ |
| inspired |
Ringworld
ⓘ
surface form:
Ringworld (structure)
|
| mayInclude |
attitude control thrusters
ⓘ
shadow squares ⓘ |
| namedAfter | Larry Niven NERFINISHED ⓘ |
| provides | immense habitable area ⓘ |
| relatedTo |
Alderson disk
ⓘ
Dyson sphere NERFINISHED ⓘ Dyson swarm NERFINISHED ⓘ Ringworld (novel) NERFINISHED ⓘ megastructure ⓘ orbital ring ⓘ |
| requires |
active station-keeping
ⓘ
advanced engineering ⓘ extreme material strength ⓘ large energy resources ⓘ |
| rotatesAround | star ⓘ |
| scaleComparedTo | larger than planetary orbit radius ⓘ |
| usedIn |
discussions of astroengineering
ⓘ
discussions of space habitats ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Dyson ring