The continuous discovery of objects with extreme hyperbolic orbits from outside the solar system in recent years has raised concerns among scientists. The orbits of small objects orbiting the sun in elliptical orbits may also become hyperbolic orbits under the influence of some force. The team at the National Observatory of Japan recently calculated the probability and orbit of such hyperbolic orbit objects.
It turns out that two hyperbolic orbiting objects found in recent years, O’Muamua and Borisov (2I/2019 Q4, Borisov), are likely to come from outside the solar system.
Unlike the elliptical orbits of ordinary comets orbiting the sun, the objects discovered in 2017 and 2019 are extremely fast compared to objects in the solar system and have extreme hyperbolic orbits that never approach the sun again. They all come from outside the solar system, and may be small objects in the “Ort Cloud” that are affected by other objects and are moving faster. It is estimated that the “Ort Cloud” is 1,000 to 100,000 astronomical units from the sun (1 astronomical unit is the average distance between the Earth and the sun).
Researchers at Japan’s National Observatory investigated how likely it would go into orbit when interstellar objects crashed into the solar system and objects of the “Ort Cloud” were accelerated by the gravitational influence of other objects. It turns out that objects in the solar system are unlikely to reach such speed, except for objects of mass several times the mass of Jupiter passing through the “Ort Cloud”. If such a large object passes near the solar system, it should be found in close observation. However, it has not been detected, so it is highly likely that an object in an extreme hyperbolic orbit would originate outside the solar system.
The team looks forward to the continued discovery of extreme hyperbolic orbiting objects in the future. The theoretical study of the mass, brightness and velocity distribution of these objects originating outside the solar system can obtain more detailed information on the relationship between the solar system and beyond.
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A few years ago, the appearance of the strange, has been suspected to be from outside the solar system. The analysis of the comet’s orbital curve adds to this hypothesis. It should be said that astronomy is a summary of the trajectory of celestial bodies from the beginning. Until now, we’ve been fascinated by the unknowns behind the stars’ unique trajectories – are they neutron stars or black holes? How big is it? …… The universe is endless, the curves are endless, and there is no end to exploration.