Stars and Galaxies: Characteristics of Stars

The video explores how people have historically identified constellations in the night sky, such as Ursa Major and Orion. It explains the composition of stars, which are made of gases and plasma, and how their energy reaches Earth. Stars are classified by size and color, with white dwarfs being small and giant stars being large. The color of a star indicates its temperature, with red being cooler and blue being hotter. Star brightness is influenced by size and temperature. The video provides a basic understanding of these astronomical concepts.

What patterns did people identify in the night sky for centuries?

Describe the appearance of the constellation Ursa Major.

How do astronomers classify stars?

What is the relationship between a star's color and its temperature?

Explain how star brightness is determined.