Wikia

"He did a microjump."
"Ridiculous, you can't hit the side of the Senate Building with a…"
"I'd say he did a little better than hit the side of the Senate Building. Looks like he's right where he wants to be."
"Terrific. I'm glad he wants to be here."

―Jorj Car'das and Dubrak Qennto discussing Thrawn^[src]

A micro-jump was a jump into hyperspace over a very short distance, often within a single star system. The pilot of a starship would launch into hyperspace and allow a planet's gravity to pull it back out. Some pilots utilized the gravity-well generated by a gravity well projector to drop into an area, such as a battlezone. Anakin Skywalker used this to survive the Battle of Praesitlyn. Luke Skywalker used this tactic while battling the Yuuzhan Vong while defending Borleias. The Chiss had perfected doing micro-jumps even without a planet or gravity-well nearby.