Source: Starfinder Core Rulebook p.103
When you're fully graviton-attuned, as a standard action, you can pull any number of creatures within 20 feet of you closer. You choose which creatures are affected and which ones aren't. Each target must succeed at a Fortitude save or be pulled 10 feet toward you. The range of this revelation and the distance pulled increase by 5 feet at 5th level and every 4 levels thereafter. Solid objects do not block this ability, but any creature that runs into a solid object ceases moving closer to you. Creatures moved by this ability do not provoke attacks of opportunity from this movement. After you use this revelation, you immediately become unattuned. Black hole functions as a zenith revelation for the purposes of abilities that reference them.