Once upon a time, the solar system was considered to exist as the nine planets . Later in 2006, humans suddenly discovered that Pluto does not meet the planetary standards in the field of human cognition, so Pluto was deprived of its planetary qualifications, and since then, there are only eight planets left in the solar system. But in fact, in addition to Pluto, there is another planet that is also regarded as the planet of the solar system. This planet is Zhurongxing . Of course, the modern astronomy community also does not recognize the planetary identity of Zhurong Star.

Of course, there is actually a big difference between Pluto and Zhurong Star: Pluto is a real planet, while Zhurong Star is a ghost planet.
1, Zhurongxing’s origin
Things have to start from 1859. At that time, people paid great attention to Mercury. During the process of attention, humans suddenly discovered that there were great irregularities in the perihelion of Mercury. And this irregularity is most likely caused by an undiscovered planet. Therefore, there has been a saying that mysterious planets affect the orbit of Mercury in the astronomical world.
is like contemporary civil sciences who like to be mysterious and advocate the invention of the perpetual motion machine all day long, which comes from extraordinary life. At that time, some astronomical and civil sciences learned about the orbit of mysterious planets, so they said with certainty that an unknown planet had been discovered. And claim that it may be this planet that affected Mercury's orbit.
Of course, there are countless astronomy and civil sciences advocated in this way. Under the misleading of these civil sciences, the astronomy community announced in 1860 that the existence of mysterious planets was confirmed. This planet is named Zhurong Star.

If Pluto is regarded as the ninth planet before, then Zhurong Star is the tenth planet. Of course, on the timeline, Pluto was discovered in 1930.
2, Ghost Zhurong Star
Although the astronomy community announced that Zhurong Star was discovered in 1860. However, the astronomy community has never found an image of Zhurong Star. At first, the astronomy community believed that Zhurong star was too close to the sun, so it was not easy to be discovered. However, during the total solar eclipse of , the astronomy community still failed to find Zhurong Star around the sun, which undoubtedly led many scholars to make such a guess: Does this Zhurong Star not exist at all?
However, science is rigorous, and astronomy is no exception. Therefore, no matter whether Zhurong Star exists or not, reasonable evidence must be provided. So for a moment, the topic of whether Zhurong Star exists or not was in a deadlock: those who advocate existence cannot explain why humans have never found the truth about Zhurong Star; those who advocate not exist cannot explain the special features of Mercury's orbit.

Moreover, as early as 1846, astronomers inferred the existence of Neptune based on astrophysics, and humans actually found Neptune. Since the special orbit of Uranus is based on Neptune, then the special orbit of Mercury should also be due to Zhurong Star; but, after all, since humans can discover Neptune, why can't they find Zhurong Star?
For a moment, Zhurong Star was like a ghost planet, plaguing the astronomy community.
All this ended until Einstein's appearance.
3. Zhurongxing, which does not exist,
1915, Einstein proposed the general relativity theory theory. This theory proves the rationality of Mercury's orbit, and also argues that the Mercury orbit calculated by Newton has great fallacy. Under Einstein's theory, humans finally confirmed that since the Mercury theory is reasonable, then naturally, there is no need for the power of Zhurong Star. Combined with the fact that humans have not been able to find Zhurong Star for a long time, it was finally confirmed that this Zhurong Star is a misunderstanding in astronomical research.
Zhurong Star, which never existed, has bothered humans for several years. It is most appropriate to describe it as a ghost planet.