This approach can now be used to determine the rotation rate of any celestial object with a magnetic field and auroras — including exoplanets.

Each IML graph is associated with two independent cartesian coordinate systems, a world coordinate system and a normalized coordinate system. The actual range of YEAR is from 71 to 86, and the range ...

It uses "geographic coordinates" systems that already existed before ... are two-dimensional representations of a three-dimensional space, the datum affixes a specific point as the "center ...