A star is known as HIP 85 605 is on a collision course with our solar system. Is it true?!The right word is not actually collide, because you would have imagined like in Armageddon, but passing close to our solar system within 0.04 parsecs from the sun. This distance may seem close, but the actual distance is more than 8,000 times the distance Earth-Sun (1 AU) at its closest approach.Given that the distance between the stars is usually measured in light years, then this close encounter to only 50 days of light, which is very close in astronomical standards. This close encounter will not happen as long as 400,000 years or more.HIP 85 605 is currently located about 16 light-years away, so we had plenty of time to welcome his visit. But this raises interesting questions about how close encounters (close encounters) as it could affect our solar system.One thing we know for sure, a close encounter with the star HIP 85 605 will not significantly affect the orbit of the planet. Through computer simulations of the solar system, we find that the orbits of the inner planets (inner planet) remained stable for billions of years even with the interaction of stars as close as 0.01 parsecs.Outermost objects like Pluto and Eris are less stable, but overall the entire planet's orbit will be stable for 85 605 HIP star approach.Which is not known for certain is how it will affect the meeting near objects in the Oort cloud. Although we know there Oort cloud, we are not sure about size. Our estimate is that the outer Oort cloud is between 20,000 to 50,000 AU from the sun.
Well, in this case, HIP 85 605 will actually move through the Oort cloud, which will obviously interfere with the objects of ice in it. Some will be thrown out of the solar system forever, while others will be thrown towards the inner solar system.
This can lead to a dramatic increase in the number of comets that cross Earth's orbit. This condition will occur over the million-year time scale, but it is quite short in the geological scale. What is the effect on life on Earth, is not entirely clear.
It is estimated that around 40 star has made a close encounter with the Oort cloud during the last 20 million years, and it has been suggested that close encounters like these that cause cycles of cometary impacts that cause climate variations and extinction events on Earth. But the evidence for such a connection is not too strong.
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