In astronomical terms, the impact would have been of moderate velocity.

Sidereal and tropical are astronomical terms used to describe two different definitions of a "year".

Both were close to the modern value of 92,955,859 miles, but precision is critical in astronomical terms.

The book contained 72 color charts prepared by Barns himself, definitions of astronomical terms, photographs, and additional information.

The supernova is 50,000 light years from Earth, a short distance away in astronomical terms.

This article is about an architectural feature; for the astronomical term see apsis.

In astronomical terms, the 1,000,000 miles that the sun moves is tiny.

In modern astronomical terms, Caesar was saying that he was a flaky, unstable guy.

Some asteroid families have formed recently, in astronomical terms.

That's a close shave in astronomical terms, but still 25 times the distance between Earth and the Moon.