China News Service, Nanjing, October 14 (Xu Shanshan) In the early morning of the 14th, Venus "holds" the moon, and "Venus and Moon" was staged as promised. Many people who traveled early witnessed this romantic "Xingyue Fairy Tale" ".

At night, if the weather is fine, Mars will become "the brightest star in the night sky", dazzling.

Venus and Mars jointly perform the "Duet" of Autumn and Sky.

　　In the early morning of that day, the moon conjoined with Venus in the form of a small crescent, surrounded by bright stars in Leo.

As sunrise approaches, the dark star disappears, and the crescent moon, Venus, and the bright star in Leo all complement each other.

　　According to experts, Venus is also known as "Taibai Venus". It is the brightest natural celestial body in the sky except the sun and moon. It appears in the eastern sky in the early morning and is called the "Venus". It appears in the western sky at night. Chang Gung Star" or "Even Star".

　　When Venus and the moon happen to move to the same longitude and the distance between the two is the closest, a "conjunction of Venus" will be formed.

It is one of the planetary conjunctive astronomical phenomena, and it has a better viewing effect except for the "Jupiter conjoined moon".

　　As night falls, at 22:18 on the 14th, Beijing time, Mars will travel to the closest point to the earth. It will be visible all night with a brightness of -2.6 magnitude, brighter than Jupiter, and an apparent diameter of about 22.3 arc seconds.

If you use a large-aperture telescope, you can see many details on the surface of Mars.

　　The so-called "Mars opposition to the sun" refers to the moment when Mars and the sun are exactly on both sides of the earth, that is, when the yellow longitude of Mars and the sun are 180 degrees apart.

　　The rendezvous period between Mars and the Earth is as long as 780 days, so every two years or so, only one "Martian opposition" can be observed on the Earth. The last time it occurred in July 2018.

Experts say that about two months from mid-September to mid-November is a good time to observe Mars.

And around October 14th, Mars observation conditions reached the best.

　　"A few days ago, taking advantage of the fine weather, many of us astronomers went to take pictures of Mars." Xu Jun, secretary general of Nanjing Astronomy Association, said, don’t feel sorry to miss the “super bright” Mars on the evening of the 14th. , The whole October is a good time to observe.

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