Cislunar space (alternatively, cis-lunar space) is the volume within the Moon's orbit, or a sphere formed by rotating that orbit. Volumes within that such as low earth orbit (LEO) are distinguished by other names. Practically, cislunar space is a useful label for "the volume between geostationary orbit and the moon's orbit". A low Earth orbit (LEO) is an orbit in which objects such as satellites are below intermediate circular orbit (ICO) and far below geostationary orbit, but typically around 350 - 1400 km above the Earths surface. ...

Beyond cislunar space lies translunar space.

Cis-lunar is Latin for "on this side of the moon" but also "not beyond the moon". Therefore, one might regard the Lagrange points L4 and L5, the stable regions of the Moon's Trojan points, as cislunar, but in practice they are so interesting as to be likely to be talked about in their own right. In celestial mechanics, the Lagrangian points, (also Lagrange point, L-point, or libration point) are the five stationary solutions of the circular restricted three-body problem. ... The term L4 may refer to The L4 microkernel family in Computers The fourth lumbar vertebra in Human anatomy The fourth Lagrange Point in an astronomical Solar System A four-cylinder engine This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same... The term L5 may refer to The fifth lumbar vertebra in Human anatomy The fifth Lagrange Point in an astronomical Solar System The filk song Home on Lagrange (The L5 Song) The Gibson L5 electric guitar in Musical instruments This is a disambiguation page — a navigational aid which lists other... The Trojan points are the L4 and L5 Lagrangian points. ...