The starry sky is about 丨 Mars meets Jupiter on the 29th, and it is only a little larger than the apparent diameter of the full moon at the latest

  Xinhua News Agency, Tianjin, May 27 (Reporter Zhou Runjian) Two more planets are about to perform "star attraction"!

Astronomy science experts introduced that on May 29, Mars joined Jupiter. When they were closest, the angular distance between the two planets was only a little larger than the apparent diameter of the full moon.

At that time, as long as the weather is fine, interested members of the public from all over our country will be able to see the picture of the "same frame" of the twin stars in the eastern sky before dawn with the naked eye.

  Whenever two planets are "close" to each other, it means there is a chance to see them simultaneously with the naked eye or a telescope, and of course it would be interesting if several brighter planets appeared in a small area of ​​the sky at the same time Phenomenon.

  In the recent period, the five planets Venus, Jupiter, Mars, Neptune, and Saturn have rarely appeared in the eastern sky before dawn. Passing near the planet, a "conjunction" phenomenon is staged.

  Yang Jing, a member of the Chinese Astronomical Society and director of the Tianjin Astronomical Society, introduced that in the early morning of May 25th, after Mars, Jupiter and a waning moon staged a "double star with the moon", the moon soon left them, but Mars and Jupiter continued to each other " close” until the conjunction at 8:3 on the 29th. At this time, the angular distance between the two reaches the closest, only 40 arc minutes, which is only a little larger than the apparent diameter of the full moon, but the sky is already bright at this time, and the distance between Mars and Jupiter when they are closest We can't see this scene.

  "The early morning of the 29th is the most suitable for observation. The angular distance of the double stars is about 41 arc minutes, which is similar to the angular distance at the nearest time." Yang Jing said that 3 hours before sunrise, Jupiter "joins" Mars and appears in the low sky in the east. There is plenty of time to observe.

Jupiter has a brightness of -2.2 magnitude, which is very bright, and Mars is slightly fainter, with a brightness of 0.7 magnitude, located at the lower right of Jupiter.

"In the early morning of the next day, Mars will run below Jupiter, and the angular distance to Jupiter is still very close."

  Under normal circumstances, Jupiter is the third brightest natural celestial body at night after the moon and Venus. It was called "Sui Xing" in ancient China. It is the largest planet in the solar system and the planet with the fastest rotation speed; Mars is the The first planet outside the Earth's orbit, with a red color, was called "Yinghuo" in ancient China, and it is currently the planet most explored by humans.

  "It is rare for two planets to be so 'close'. If the observation time is right and the weather is fine, interested public from all over our country can see them with the naked eye. In a small field of view, you can see Mars and Jupiter in the same frame, and you can even observe the phase of Mars, Jupiter's colored cloud bands and its three Galilean moons at the same time." Yang Jing said.