Uranus data map. Photo by Wei Guo
China News Service Nanjing, October 28 (Yang Yanci) The Purple Mountain Observatory of the Chinese Academy of Sciences announced on the 28th that Uranus, which has been obscured in the public eye for a long time, will launch a "Storm against the Japanese" performance. This mysterious light blue round celestial object will open an excellent observation window that night.
Uranus, one of the eight planets in the solar system, is the seventh planet in the solar system from inside to outside, and is also the most "cold" planet. According to experts, the main components of Uranus' atmosphere are hydrogen, helium and methane. The core is composed of ice and rocks. The average temperature is -220.15℃ and the whole body is light blue.
In the long river of history, due to Uranus' dim "starlight" and slow orbit, it was not confirmed as a planet until 1781, and it has been regarded as a star before. This discovery extended the known boundaries of the solar system and made Uranus the first planet to be discovered using a telescope.
Compared with other planets, Uranus is more difficult to observe. Only during the "Sunday" period, you can get a glimpse of the mysterious appearance of this " ice giant ".
Astronomers introduced that the so-called "sun opposition" of Uranus actually means that Uranus and the Sun are just on both sides of the earth, and the three are almost in a straight line. At this time, Uranus is closest to the earth and has high brightness, which is an excellent time to observe Uranus.
According to astronomical calculations, the junction period between Uranus and the earth is 369.6 days, that is, the average daily opposition of Uranus occurs once every 369.6 days. During this "sun conflict", Uranus' brightness is about 5.7, which is difficult to distinguish with the naked eye.
When this time, Uranus will rise at sunset and set at sunrise the next day. Astronomical experts suggest that interested publics can choose their observation locations to open their field of view from strong light sources, such as in the suburbs or on the top of a mountain, and find a slowly moving light blue circular celestial body through the astronomical telescope with a larger diameter and a longer focal length of .
experts remind that although Uranus is more suitable for observation during the "sun opposition" period, to distinguish it from the vast sea of stars, it is still necessary to use telescopes and star maps and to locate it, which is difficult to identify with the naked eye alone. (End)
Source: China News Network
