What is another word for astronomical unit?
Pronunciation: [ɐstɹənˈɒmɪkə͡l jˈuːnɪt] (IPA) 
Some synonyms for the term "astronomical unit" include:
1. AU - a popular abbreviation that is commonly used in scientific circles to refer to the astronomical unit.
2. Earth-Sun Distance - this term is self-explanatory and refers to the average distance between the Earth and the Sun, which is approximately 149.6 million kilometers, or one astronomical unit.
3. Solar Radius - this term is used to indicate the distance from the center of the Sun to its surface, which is approximately 695,700 kilometers or 0.00465 AU.
4. Light-year - this term is used to measure distance outside our solar system, and it represents the distance that light can travel in one year, which is roughly 9.46 trillion kilometers or 63,240 AU.
