Astronomers have discovered an unusually perfect spherical object within the Milky Way, puzzling researchers about its origin ...

In general usage, symmetry most often refers to mirror or reflective symmetry; that is, a line (in 2-D) or plane (in 3-D) can be drawn through an object such that the two halves are mirror images ...

Second, the true particle intensity distribution is, in general, not a Gaussian, but rather the convolution of the object shape ... the point of maximal radial symmetry, therefore, would provide ...