NCERT Solutions for Class 6 Social Science Geography Chapter 1
Social Science Class 6 Geography
Democratic Rights 6
Important NCERT Questions Based on new NCERT Books for Session 2022-2023
Questions No: 1 Part: a
How does a planet differ from a star?
Share
Difference between star and planet:
Star:
1. Some celestial bodies are made up of gases. They have their own heat and light, which they emit in large amounts. These celestial bodies are called stars.
2. Example: Sun
Planet:
1. Some celestial bodies do not have their own heat and light. They are lit by light of stars. Such bodies are called planets.
2. Example: Earth, Jupiter etc.
Planets and stars are distinct celestial entities that differ in fundamental ways. A star is a luminous, massive celestial body primarily composed of hydrogen and helium undergoing nuclear fusion in its core. The energy produced from this process results in the emission of light and heat, making stars self-luminous. They often serve as gravitational centers around which planets orbit.
In contrast, planets are non-luminous celestial bodies that do not undergo nuclear fusion. They are significantly smaller than stars and consist of various materials such as rocks, metals, and gases. Planets orbit stars, including our Sun, and their visibility is due to the reflection of the star’s light.
While stars generate their own energy and light through fusion reactions, planets do not possess this capability. Instead, they rely on the light emitted by the star they orbit. Additionally, planets may have moons or natural satellites that orbit them, adding to the complexity of their celestial interactions. The distinction between stars and planets lies in their composition, energy generation mechanisms, and their roles within the larger cosmic structures.