What is the brightest star in the western sky?

Venus is one of the eight planets in the solar system, with a distance of 654.38+0.082 million kilometers from the sun, ranking second in the order from near to far, and adjacent to the earth. Venus's atmosphere contains thick carbon dioxide, its surface temperature is close to 500 degrees Celsius, and there is no liquid water. In addition, Venus's atmospheric pressure is about 90 times that of the Earth, and it is seriously deprived of oxygen.

Therefore, the possibility of life on Venus is extremely slim. Venus, like the moon, has periodic changes, but because Venus is too far away from the earth, it can't be seen by the naked eye, and it needs the help of a telescope to observe it. Since Venus always appears near the sun, its phase has become the goal pursued by most astronomy and photography lovers.

Venus has a very special stage. Venus will get brighter and brighter when it is far away. In most cases, the brightest moment of Venus often appears about one month after the easterly distance and before the westerly distance. This is a major feature of Venus phase. At a large distance, the apparent magnitude of Venus is about -4.5, and it can reach -4.8 at the brightest, or even brighter.

If observed in the area around 40 north latitude, the horizon height of Venus can reach 38 at sunset. Later, the height of Venus will decrease, but it will appear brighter.

Experts from the Beijing Planetarium have introduced their experience in observing Venus, and they can pay attention to the changes in the shape of Venus: "When the distance is in the east, Venus is farthest from the sun, and this time it is the first quarter moon. Since then, Venus has gradually approached the sun. The closer to the sun, the bigger its' head' and the thinner its' crescent'. "

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Venus in ancient times

In the morning before sunrise, there is always a very bright star that shines like a diamond. What is particularly striking is Venus. Venus is the brightest celestial body except the sun and the moon, and its farthest distance from the sun can reach 48. In ancient China, Venus that appeared in the morning was called "morning star" and Venus that appeared at night was called "evening star".

Venus is often observed because of its high brightness. Venus is very noticeable in both ancient China fairy tales and ancient Greek and Roman fairy tales.

In ancient times, China folks called Venus too white. At dawn, Venus appears in the east and is called "morning star" or "morning star". In the evening, Venus is called "Chang Geng Xing" and appears in the afterglow of the evening sunset.

In western mythology, Venus is the embodiment of love and beauty-the goddess Venus. Latin words like "Venus" and "Friday" all come from her. Venus is also the Roman name of Venus, which means "beautiful painting". In Greek mythology, it is called Aphrodite, which means "rising bubble" because it is said that it was born from the rising bubble on the sea surface.

Baidu Encyclopedia-Venus