What Does PA Stand For?
PA stands for Position Angle
Position Angle (PA) is a measure used in astronomy to describe the orientation of an astronomical object in relation to a reference direction, typically North. It is expressed in degrees, with angles typically ranging from 0° to 360°. PA is essential for characterizing the spatial arrangement of binary star systems, the alignment of galaxies, and the orientation of protoplanetary disks, providing crucial information for astrophysical studies and observations.
Added on 14th April 2008 | Last edited on 17th June 2025 | Edit Acronym