International Astronomical Union (IAU)

Highlights

• ›The authority for astronomical names, boundaries, and reference systems

Related systems & concepts

• The International Celestial Reference System
• The Equatorial Coordinate System
• International Earth Rotation and Reference Systems Service (IERS)

Knowledge connections

• Associated withThe International Celestial Reference System
• Associated withThe Equatorial Coordinate System
• Associated withInternational Earth Rotation and Reference Systems Service (IERS)

Sources

Facts on this topic will be cited from these primary and reference sources.

• IAUInternational Astronomical Union

  Official naming, definitions, constellation boundaries, and astronomical nomenclature.