According to foreign media CNET, astronomers have discovered an unusual asteroid, the asteroid that has the shortest revolution period. The asteroid with the number "2019 LF6" has a revolution period of only 151 days. The asteroid rotates in a very unusual elliptical orbit, sometimes closer to the sun than Mercury at one end, and then passes through Venus at the other end.
This makes this asteroid one of the 20 so-called "Atira" asteroids known, with its perihelion and astronomical points within Earth's orbit. But the "2019 LF6" asteroid is rare because it is relatively large and is about a kilometer in diameter.
“There are often no asteroids about 1 km in diameter recently,” said Calzhi, an asteroid discoverer at the California Institute of Technology, in a statement. "In most of the larger (larger celestial bodies) that have been discovered, this larger celestial body is rare. its unique orbit explains why such a large asteroid has been carefully searched for decades. Not observed in the middle."
Astronomers discovered the asteroid using the Zwicky Transient Facility at the Palomar Observatory, which also discovered another Atira asteroid earlier this year. Tom Prince, a scientist at the NASA Jet Propulsion Laboratory, said: "This shows that in the past they were sometimes thrown out of the solar system because they are too close to Venus or Mercury."xx