An astronomical discovery is the discovery of anything outside of the planet earth and its atmosphere.
Astronomical is an adjective that has a couple meanings. The first meaning of astronomical is relating to astronomy, and the second meaning of astronomical is extremely large.
The official definition of the word discovery is "the action or process of discovering or being discovered."
The International Astronomical Union
Yes, the definition of the "astronomical unit" is based on the average distance of the Earth from the Sun.
A depression on the surface that looks like a channel.
Earth is one astronomical unit from the sun. The average distance between the sun and Earth is the definition of an astronomical unit.
Star or occasionally something else astronomical, such as planet.
An astronomical unit is, by definition, the mean distance of the Sun to the Earth, which is about 149 500 000 kilometers. I guess you can make the multiplication yourself to get the answer.
Having or representing the sun as the center, as in the accepted astronomical model of the solar system.
That looks more like a code assigned by a specific manufacturer, than an astronomical discovery.
the path that an astronomical object such as a planet, moon, or satellite follows around a larger astronomical object such as the Sun
Please answer this question I don't know so don't rant on me! : (