What is the brightest planet?

Answer 1

Observed from Earth, the brightest planet is Venus with an apparent magnitude of -4.6.

That depends on how you think of that question. None of the planets produce light of their own. On that basis, they are all as dark as each other.

The planets reflect light from the sun. On Earth when we see the different planets reflecting the sun's light, it is Venus that looks brightest.

One other way of looking at your question is that on the surface of Mercury, the nearest planet to the sun, it would be extremely bright. So on that basis Mercury is the brightest.

Answer 2

Venus is the brightest planet in our solar system. It's often visible in the morning or evening sky and can sometimes even be seen during the day.

Answer 3

Venus is the brightest planet in our solar system.