Geological Chronicle
Heaviside is a large lunar impact crater spanning 164.46 kilometers in diameter on the far side of the Moon. The structure is attached along its western perimeter to the eastern rim of the walled plain Keeler, a neighboring formation that is somewhat less eroded. Further across the surrounding terrain, the crater Stratton lies to the northwest, and the prominent crater Aitken sits to the southeast.
Subsequent impacts have worn down the outer wall of Heaviside, particularly along its northern and southern margins. Only the eastern rim remains relatively intact, while the western rim was distorted by the adjacent Keeler impact. The crater floor is relatively flat and marked by rugged terrain to the southeast and west, alongside small craters including the bowl-shaped satellite crater Heaviside E near the eastern rim, Heaviside N in the south, and Heaviside Z in the north.
Prior to its formal designation, the feature was cataloged as Crater 305. In 1970, the International Astronomical Union officially named the crater in honor of British mathematician and physicist Oliver Heaviside.