[Commentary] In the early hours of April 10th, Mars, Jupiter, and Saturn will stage a "Samsung Isometric" astronomical phenomenon in the night sky. This is also the third time that "Samsung Isometric" will be staged after March 5 and March 27, 2020. .

[Explanation] According to Hu Fanghao, an engineer from the Science Department of the Purple Mountain Observatory of the Chinese Academy of Sciences, the "Samsung Isometric" astronomical phenomenon is mainly related to the movement of the planet. Mars, Jupiter, and Saturn orbit the sun in their respective orbits, and have different periods. Mars orbits the Sun for about 2 years, Jupiter for about 12 years, and Saturn for about 30 years.

[Same period] Hu Fanghao, Engineer, Science Department, Purple Mountain Observatory, Chinese Academy of Sciences

Mars, Saturn, and Jupiter operate at different speeds in the sky. Obviously, Mars will move faster than Jupiter and Saturn. The distance between Saturn and Jupiter can be regarded as approximately unchanged during this period. As Mars gets farther away from Jupiter, on April 10, the distance between Mars and Jupiter is exactly the same as the distance between Jupiter and Saturn. Same location.

[Commentary] Hu Fanghao told reporters that on that day, astronomy enthusiasts can choose places with less light pollution to watch "Samsung Isometric" celestial phenomena, and the effect will be better.

[Same period] Hu Fanghao, Engineer, Science Department, Purple Mountain Observatory, Chinese Academy of Sciences

If there is no building or cloud cover in the southeast, around 3 o'clock, we can see these three stars in the low sky. These three stars are arranged in a straight line, the brightest one is Jupiter, the color The reddish one is Mars, and Saturn is between the two stars.

Reporter Ge Yong from Nanjing, Jiangsu

Editor in charge: [Liu Xian]