Time: 2018-12-10 16:27
The Agency for Astronomical Experts said the brightest comet in 2018 will pass the nearest day to the 12th and closest site in 16th place. If the weather is fine, the transparency in the atmosphere is high enough, and the public interested in China With a small telescope can see it.
The comet is a little heavenly body in the solar system. The main component is water ice. Most of the comets are weak and bright enough to be seen with the naked eye. According to astronomical data, the comet is numbered as 46p / Wirtanen, a short comet for a short time belonging to the ordinary Moutsu comet, which is often influenced by the gravity of Jupiter and altered its orbit during the operation.
According to astronomical data, on January 17, 1948, American astronomers first discovered the trail of this comet in a photographic film. The comet was once the goal of the European Space Agency "Rosetta". Later, due to the lack of the opening window, he was finally abandoned, and the lander released by "Rosetta" successfully landed on another comet.
Shi Qiheng, a member of the Chinese Astronomical Society and a member of the Tianjin Astronomical Society, said the 46p comet passes near the day point in 12th place, and the closest place to the 16th – only 0.078 astronomical units out of the Earth – 11 , 62 million kilometers. Closest to Earth after its discovery.
"This comet is very suitable for observation in the northern hemisphere, but since its own size is not large, the brightness will not be too high, it is estimated at around 3, not far from the Taurus comet, the difficulty of observation is not yet small ". It is believed that the middle of the end of December is a good time to observe the comet of 46p. "Around 9:00 every night Taurus rises to the southeast and the Pleiades group is very attractive, interested astronomers can pre-prepare a small telescope and search for it near this beautiful cluster." The mysterious beauty of this comet with a tail If the transparency the atmosphere is good enough, the ability to detect this comet with the naked eye is not excluded. "
(Editor: Wei Xiaohang)