Are Planets Non-Luminous Objects?
Planets are indeed non-luminous objects in our solar system. They do not generate their own light like stars do. Instead, they reflect light from the Sun, which makes them visible to us.

Characteristics of Planets
- Planets are rocky or gaseous bodies that orbit around a star.
- They do not produce their own light or heat.
- The light we see from planets is actually sunlight reflecting off their surfaces.

Reflecting Sunlight
- Planets reflect sunlight because they do not have the internal processes that stars do to generate their own light.
- This reflection allows us to see planets shining in the night sky.

The Brightest Planets
- Some planets, such as Venus and Jupiter, can appear quite bright in our night sky due to their proximity to Earth and their reflective surfaces.
- These planets are easily visible to the naked eye.

Conclusion
In conclusion, planets are non-luminous objects that reflect light from the Sun, making them visible to us from Earth. Their lack of internal light-producing mechanisms distinguishes them from stars in our solar system.