Gravity well/Legends
The term Gravity Well described any location where a considerable gravity field existed. In Hyperspace navigation, a Gravity Well referred to any relative curvature of space, caused by gravity, that would interfere with Hyperspace travel. Any body having mass exerts a gravity field, though most are negligible. On the celestial scale, more massive bodies create more formidable gravity fields accounting for the orbits of planets and solar systems around massive stars. These naturally occurring gravity wells form obstacles to Hyperspace travel. A gravity well could be generated by a gravity well projector or a Gravity Well Station. These devices shaped a temporary gravity well for the purpose of interdicting Hyperspace travel, either for individual ships, or entire fleets.
Examples
Vagaari ship net
The Vagaari possessed gravity well projectors known as ship nets on some of their ships which were used to prevent their victims fleeing to hyperspace. Chiss Commander Thrawn and his warriors of the Chiss Expansionary Defense Force managed to capture one of these devices from the Vagaari and later put it to use in the Outbound Flight crisis.

Immobilizer 418 cruiser
The Sienar Fleet Systems Immobilizer 418 cruiser, commonly referred to as an interdictor cruiser, was equipped with a number of gravity well projectors. While active, these projectors prevented ships in the vicinity of an interdictor cruiser from being able to execute jumps into hyperspace while also forcing ships traveling in hyperspace back into realspace.
Gravity Well Station
An Imperial Gravity Well Station was a space station built to emit a gravity well from the use of a Gravity well projector inside the Gravity Well Station
The Maw
The Maw was a cluster of black holes located near the Kessel system. The Maw contained a large number of Gravity wells due to the large number of Black Holes.
Appearances
- Star Wars: The Old Republic
- Star Wars: The Old Republic: Galactic Starfighter
- Crosscurrent
- Han Solo at Stars' End (First appearance)
- Star Wars Galaxies: The Ruins of Dantooine
- Star Wars: Empire at War
- Star Wars: Empire at War: Forces of Corruption
- Star Wars Episode IV: A New Hope novelization (First mentioned)
"Ambush in Laramus" – The Star Wars Sourcebook
"Ambush in Laramus" – Star Wars Sourcebook, Second Edition
"Only Droids Serve the Maker" – Star Wars Adventure Journal 10
"Infiltration" – Supernova
"Triple Cross" – Supernova
"Elusive" – No Disintegrations
"Hunter/Hunted" – The Far Orbit Project
- Beyond the Rim
"Day of the Sepulchral Night" – Star Wars Adventure Journal 13
"Death Is Remotely Possible"—The DarkStryder Campaign
"Traitor in our Midst"—The DarkStryder Campaign
"Endgame"—Endgame
- Heir to the Empire
- Dark Force Rising
- Dark Force Rising audiobook
"Nightsaber" (original article link) on Wizards.com (content now obsolete; backup link)
- The New Jedi Order: Vector Prime
"A Fair Trade" – Star Wars Insider 129
Sources
- Heir to the Empire Sourcebook
- Imperial Sourcebook
- Galaxy Guide 4: Alien Races, Second Edition
- Galladinium's Fantastic Technology
- The Truce at Bakura Sourcebook
- The Jedi Academy Sourcebook
- The Essential Guide to Vehicles and Vessels
"Alliance Intelligence Report: TIE Fighters" – Star Wars Adventure Journal 10
- The Thrawn Trilogy Sourcebook
- Star Wars: The Roleplaying Game, Second Edition, Revised and Expanded
- Secrets of the Sisar Run
- Lords of the Expanse
- Living Force Campaign Guide
- Starships of the Galaxy
- Starships of the Galaxy, Saga Edition
- The Unknown Regions
- Millennium Falcon Owner's Workshop Manual
gravity well projector in the Databank (content now obsolete; backup link)
- The Essential Guide to Warfare
- Star Wars: Age of Rebellion Core Rulebook
- Fly Casual