What is the sun?
Understand the Problem
The question is asking for a definition or explanation of what the sun is, involving its characteristics and significance in the solar system.
Answer
The Sun is a massive sphere of hot plasma and the center of our solar system.
The Sun is a massive, nearly perfect sphere of hot plasma at the center of our solar system. It is composed mainly of hydrogen and helium, generates energy through nuclear fusion, and is the source of light and heat for Earth.
Answer for screen readers
The Sun is a massive, nearly perfect sphere of hot plasma at the center of our solar system. It is composed mainly of hydrogen and helium, generates energy through nuclear fusion, and is the source of light and heat for Earth.
More Information
The Sun is classified as a G-type main-sequence star (G dwarf), which is often informally called a 'yellow dwarf.' It's around 4.6 billion years old and comprises more than 99% of the total mass of the solar system.
Sources
- Sun - NASA Science - science.nasa.gov
- The Sun - National Geographic Kids - kids.nationalgeographic.com
- Sun - Wikipedia - en.wikipedia.org
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