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None of the planets in the Solar system radiate their own light, so they are all as bright (luminous) as each other, which is, not at all.
Any light we see from planets is reflected light that came from the Sun (as opposed to stars who generate their own light).
the planet with the greatest apparent magnitude (that is, how bright the body appears to an observer on the earth looking up at the sky) is Venus.
What else can I help you with?
The brightest planet?
mercury
What is the hottest planet and brightest planet in the sky?
Venus is the brightest and hottest Planet in our solar System.
What planet is the brightest after the sun and moon?
Venus is the brightest thing in the sky, after the Sun and Moon.
What planet is brightest in the sky after the sun and moon?
The planet Venus is!
Which planet is the brightest from earth?
venus
Why is the earth the brightest planet?
The earth isn't the brightest planet,it is Venus.
What is the second brightest planet in the solar system?
The second Brightest planet is Jupiter.
The brightest planet?
mercury
Planet that is the brightest planet viewed from earth?
Venus
What is the hottest planet and brightest planet in the sky?
Venus is the brightest and hottest Planet in our solar System.
Is Jupiter the second or fourth brightest planet?
Jupiter is the second brightest planet in the sky after Venus and the fourth brightest object in the sky. The sun and the moon are the brightest objects in the sky, but they are not planets.
What planet is the brightest after the sun and moon?
Venus is the brightest thing in the sky, after the Sun and Moon.
What planet is brightest in the sky after the sun and moon?
The planet Venus is!
What planet is the brightest in the sky after the sun and the moon?
The planet Venus is!
You are the brightest planet in the sky?
venus
Which planet is the brightest from earth?
venus
What is the brightest and the hottest planet?
Jupiter is...
