ELI5: Explain Like I'm 5

Astronomical object

An astronomical object is something that is very far away in space and can be seen in the sky at night. It can be a star, a planet, a moon, a galaxy, or something else. These objects are very big and can be very hot, bright, or cold. We can use special tools like telescopes to study these objects and learn more about what they are made of, how they move, and what they can tell us about the universe. Just like how we can see ants crawling on the ground but they are too small to really understand, astronomical objects are enormous but we can still learn a lot about them by studying them carefully.
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