Solar Orbit Capture: In some cases, an interstellar object may be gravitationally captured by the Sun, becoming a small member of the solar system. For instance, several tiny objects like C/2019 Q4 (Borisov) and A/2017 U1 ('Oumuamua) passed through our solar system on a hyperbolic trajectory before continuing on their journey through interstellar space.
Solar Encounter and Perturbed Trajectory: When an interstellar object interacts with the gravitational forces of the Sun and planets, its original trajectory can be perturbed. This gravitational encounter can alter its direction, velocity, and eccentricity. The object may leave our solar system on a different trajectory than its original path.
Solar Evaporation: As an interstellar object approaches the Sun, it can experience intense solar heating and sublimation of volatile material on its surface. This can lead to significant mass loss and potential fragmentation. The object may completely disintegrate or diminish in size as it journeys closer to the Sun.
Collision with Planets: If an interstellar object is on a collision course with one of the planets or other massive bodies in our solar system, it could potentially impact the planet or be deflected to a different trajectory. This outcome hinges on the exact trajectory and timing of the object's approach.
Sun-Grazing Orbits: Some interstellar objects may undergo highly eccentric orbits that bring them extremely close to the Sun's surface without directly colliding with it. During such close encounters, the intense heat can dramatically change the object's composition and appearance, potentially causing disintegration or significant alterations to its structure.
Capture by Planets: In rare instances, an interstellar object could become temporarily or permanently gravitationally bound to one of the planets in our solar system, resembling a small satellite or companion object of the planet.
Escape from Solar System: If the interstellar object's trajectory is not altered by the gravitational influence of the Sun or planets, it may simply pass through our solar system without significant interactions and continue its journey into interstellar space.
The specific fate of an interstellar object depends on multiple factors, including its trajectory, size, composition, and the gravitational interactions it experiences during its encounter with our solar system. Each interstellar object's journey through our cosmic neighborhood is unique and can provide insights into the properties of these enigmatic celestial visitors.
