In what year did the International Astronomical Union (IAU) establish the new, fixed definition for the AU?
Answer
2012
A significant standardization occurred in 2012 when the IAU officially assigned the AU an exact, defined length in the metric system, separating it from the physical observation of Earth's varying orbit.
#Videos
What Does AU Mean In Astronomy? - Physics Frontier - YouTube
Related Questions
What distance does the Astronomical Unit (AU) fundamentally represent?In what year did the International Astronomical Union (IAU) establish the new, fixed definition for the AU?What is the modern, fixed value of one Astronomical Unit in meters?What specific measure of a planet's orbit does the AU represent?Approximately how long does it take for light emitted by the Sun to travel one AU to reach Earth?What approximate imperial measurement is equivalent to one AU?Why is defining the AU as a fixed constant beneficial for long-term space missions?Which planetary distances bracket the location of the asteroid belt when measured in AU?What astronomical scale makes the AU impractical as a primary unit of measurement?Historically, how was the AU initially determined before 2012?