Question

Why Venus looks so bright?​

Answer 1

Answer:

How best we see Venus depends on its position relative to Earth and the Sun. ... Venus has an albedo of 0.7, which means that it reflects about 70 per cent of the sunlight that falls on it. So, that's why Venus is shining so brightly at the moment, and it makes for wonderful viewing in the evening sky.

Answer 2

Answer:

QᏌᎬᏚᎢᏆᎾN ⤵️

Why Venus looks so bright?

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Is it because, like Mars or Jupiter when they are at their brightest, At its closest, Venus comes within 42 million kilometres of our planet during what we call ‘inferior conjunction’, when it lies directly between us and the Sun. However, we can’t observe it during inferior conjunction, partly because of the Sun’s glare hiding it, and also because at inferior conjunction we are looking at Venus’ night-time hemisphere – the dayside is facing the Sun instead, so we would not see the illuminated part of the planet.

Instead, we see Venus at its brightest when it’s close to a point called ‘maximum elongation’. To picture what this is, imagine being able to look down on the Solar System from high above the plane of the orbits of the planets. With this birds’ eye view, you are able to see the planets traverse their (almost) circular orbits. Now, focus on the orbits of the second and third planets, Venus and Earth, and imagine Venus at inferior conjunction with Earth.

Because Venus is closer to the Sun, its orbit is smaller and it moves around the Sun faster than Earth does (one orbit for Venus takes 225 Earth days, as opposed to our 365 days). So soon enough it reaches a position in its orbit relative to Earth where it appears to the side of the Sun from our point of view. The further to the side of the Sun that Venus moves, the easier it is to see it. Its greatest distance to the side of the Sun is called maximum elongation, and as we can see, Venus is quite a distance from the Sun in the sky. For example, on 28 April, when Venus is about 70 million kilometres from Earth, it sets below the western horizon four hours after the Sun does.

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