What are Some Celestial Objects?
Celestial objects are things we can find when we look up at the night sky with a telescope, binoculars, or the naked eye. Some have been known for centuries, while others are quite recent, revealed only by the most powerful telescopes. The “standard” celestial objects, that is, those known since ancient times, are the Sun and the Moon, the stars visible with the naked eye, and the first six planets, except Earth, of course. Our ancestors worshipped some of these, such as the Sun and the Moon, and assigned the stars special meaning, variously describing them as symbols etched in the sky by gods, or little holes beyond which was a higher celestial sphere. It was thought that all the stars, planets, and the Sun orbited around the Earth on a fixed shell. Comets were observed from time to time, considered bad omens. With the invention of the telescope in the Renaissance, people started to realize that the Sun didn’t orbit the Earth, but rather vice versa. Galileo Galilei famously observed f