# innermost stable circular orbit

> smallest circular orbit in which a test particle can stably orbit a massive object in general relativity

**Wikidata**: [Q25110047](https://www.wikidata.org/wiki/Q25110047)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Innermost_stable_circular_orbit)  
**Source**: https://4ort.xyz/entity/innermost-stable-circular-orbit