Chinanews client, Beijing, September 5th (Reporter Shangguanyun) In September, what will be the exciting blockbusters in the "Sky Theater"?

According to experts, the more important astronomical phenomena include the Venus conjoined moon and so on.

　　Venus conjoined moon, meteor shower... which one are you looking forward to these celestial phenomena?

September, watching the moon

　　Among the planets in the solar system, the most dazzling one this month is Venus.

　　According to reports, on the 10th, Venus conjoined the moon to reach Tianyu.

At that time, the crescent moon will be like a silver hook. As long as there is no excessively high shelter on the western ground level, you can enjoy the beautiful view of Venus and the crescent moon close to each other.

Data map: Previously, the weather in Beijing was fine, and after the sun set, the astronomical landscape of "Venus and Moon" in Tianyu was clearly visible.

Photo by China News Agency reporter Sun Zifa

　　On September 18, there will be a "Jupiter conjunct moon", and the next Jupiter conjunct will be October 15.

　　September 21 is the Mid-Autumn Festival, and the fullest hour of the moon appears at 7:55 that day.

According to Yuan Fengfang, head of science popularization at the National Astronomical Observatory, the Mid-Autumn Festival full moon is worth looking forward to. This year it will appear on time on August 15 of the lunar calendar.

Why is the moon not necessarily "fifteen round"?

　　However, it has also been said before that the fifteenth moon may also be "sixteen yuan."

　　The traditional Chinese calendar is the lunar-solar calendar, which takes into account the revolution of the earth around the sun and the revolution of the moon around the earth.

Traditionally, people also call the traditional calendar the "lunar calendar."

　　When viewed from the earth, when the projections of the sun and the moon on the ecliptic coincide, it is "Shao", which is the first day of the lunar calendar; when the projections of the sun and the moon on the ecliptic are exactly 180 degrees different from each other, it is the lunar calendar. see".

　　"Because the moon's orbit around the earth is not a perfect circle, coupled with the influence of other factors such as calendar errors, the time of the full moon may not always be on the fifteenth of the lunar calendar." Yuan Fengfang explained, "but the full moon is generally on the lunar calendar. Fifteen, sixteen."

Data map: September 24, 2018, Beijing, a bright moon in the sky, full moon on the night of the Mid-Autumn Festival.

Photo by China News Agency reporter Zhai Lu

Are these meteor showers "not worth watching"?

　　There are several meteor showers active in September. As for the viewing effect, astronomers may be disappointed.

　　According to the information released by the WeChat public account of the National Astronomical Observatory of the Chinese Academy of Sciences, from September 1 to September 13, there were roughly six meteor showers, including the Auriga meteor shower, the September ε Perseids meteor shower and so on.

　　Among them, the September ε Perseid meteor shower ushered in its maximum period on September 9, and its active period is between September 5 and 21 each year.

On September 10, the September Lynx meteor shower ushered in its maximum period (ZHR<2).

　　Yuan Fengfang said that most of these meteor showers in September have relatively small flows, so they are not worth watching.

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