Similarities:
- Both are spherical in shape.
- Both rotate on their own axes.
- Both have gravity that keeps objects in orbit around them.
- Both emit electromagnetic radiation.
- Both have atmospheres, although the Sun's atmosphere is much hotter and denser than Earth's.
Differences:
- Size: The Sun is vastly larger than Earth. Its diameter is approximately 109 times that of Earth, and its mass is about 330,000 times greater.
- Composition: The Sun is primarily composed of hydrogen and helium, while Earth is made up of various elements such as iron, oxygen, silicon, and magnesium.
- Temperature: The surface temperature of the Sun is approximately 9,940 degrees Fahrenheit (5,505 degrees Celsius), while Earth's average temperature is around 59 degrees Fahrenheit (15 degrees Celsius).
- Energy Source: The Sun generates energy through nuclear fusion reactions in its core, where hydrogen atoms combine to form helium atoms, releasing vast amounts of energy. Earth does not produce its energy but instead relies on solar energy from the Sun.
- Atmosphere: The Sun's atmosphere is extremely hot and tenuous, consisting mostly of hydrogen and helium. Earth's atmosphere is much cooler and denser, composed primarily of nitrogen, oxygen, and argon, with trace amounts of other gases.
- Celestial Classification: The Sun is a star, while Earth is a planet. Stars are self-luminous celestial bodies that produce their energy, while planets are non-luminous bodies that orbit stars and are illuminated by them.
- Habitability: Earth has the right conditions to support life, such as a moderate temperature range, liquid water, and a breathable atmosphere. The Sun, being a star, does not possess conditions suitable for life as we know it.
