Astronomers say they might have found a new ‘minimoon’ orbiting Earth

The video discusses the discovery of a temporary mini moon, 2020 CD3, by the University of Arizona's Steward Observatory. The mini moon, which is 1.9 to 3.5 meters in diameter, has been orbiting Earth for nearly three years and is expected to leave in April. Its light reflection suggests it is similar to carbon-rich asteroids. While other observatories have yet to confirm its presence, it is not uncommon for Earth to capture such temporary satellites. There is a possibility that the mini moon could be recaptured by the moon's gravity and become a natural lunar satellite, a theoretical class of objects that astronomers believe might exist.

What is the diameter range of the space rock mentioned in the text?

What are the characteristics of the light reflection from the possible mini moon?

What is the expected departure time of the mini moon from Earth's orbit?

What is the significance of the gravity well of the moon in relation to the mini moon?

What is the theoretical class of objects that astronomers think might exist, as mentioned in the text?