The formula v2 = G is very useful for astronomers because it does not require them to know T. What does T stand for? orbital period tangential speed satellite radius

The answer is Orbital

Explanation:

I just answered it on on E2020 and got it correct

The right option is; orbital period

T stands for orbital period.

Orbital period is the time a certain astronomical object such as planets takes to complete one orbit (360° revolution) around another object such as sun or stars. Orbital period is expressed in different units of time, usually in years, days or hours.