Does the astronomical time in the lower bound of Venus indicate a constellation?

In 2020, we will usher in the lower bound of Venus, a global astronomical wonder. This astronomical phenomenon is visible to the naked eye, which is very rare and worth watching. So when is the lower bound of Venus? Are there any signs? Then let the constellation knowledge reveal the secret for everyone!

Venus Lower Bound Time: On June 3, June 3, the world will usher in an astronomical spectacle, that is, the "Venus Lower Bound" spectacle visible to the naked eye. Everyone knows that Venus is also called the "morning star", so it can be seen a few hours after sunset or a few hours before the sun rises. If you want to see your friends, please set your alarm clock in advance.

We know that the earth is about 65.438+0.5 billion kilometers away from the sun and revolves around the sun at a speed of 29.783 kilometers per second, while Venus in orbit inside the earth is about 65.438+0.07 billion kilometers away from the sun and revolves around the sun at a speed of 35.03 kilometers per second. The revolution direction of the earth and Venus is "counterclockwise". Because the angular velocity of Venus is much faster than that of the Earth, it will depart from the Earth on June 3rd. This phenomenon is different from "transit of venus". Transit of venus is Venus, which appears directly between the earth and the sun.

Now, Venus is approaching the earth, so its shape is more and more crescent-shaped and its brightness is decreasing. On June 3rd, Venus came between the earth and the sun, so no matter its appearance or brightness, Venus will change greatly, becoming a slender crescent, and its brightness will drop seriously, so it seems that Venus will disappear. If you have a pair of binoculars, you can clearly see the changing shape and brightness of Venus. If not, you can also see the faint brightness change with the naked eye.

The lower bound of Venus indicates that the lower bound of Venus is just an ordinary astronomical phenomenon, with no special indication or hint.

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