Another Star Will be Crossing, And The Earth Life Threatening

Astronomy Science ~ Far past the orbit of Neptune, located trillions of comets left over from the formation of the solar system, they lurk ...

Astronomy Science ~ Far past the orbit of Neptune, located trillions of comets left over from the formation of the solar system, they lurk in the area known as the Oort cloud. In this region, they remain in a stable orbit around the sun, posing little threat to earth except the occasional comet entered the inner solar system.

But in the blink of the cosmic eye, this could change. A star has been found to be passing near our solar system in 240,000 years - and they may bathe the Earth with thousands of deadly comets. According to Dr. Coryn Bailey-Jones from the Max Planck Institute for Astronomy in Heidelberg, Germany, there are some stars that could pose a danger to our solar system.

As the sun we do cosmic dance around the Milky Way, he also approached and away from the other stars in the vicinity. The most dangerous is the HIP 85 605 star, a star slightly smaller than our sun have a 90 percent chance of approaching at a distance of between 0.13 and 0.65 light-years from Earth in the 240,000 to 470,000 years.

Illustration of the passage of other stars near the solar system would envy thousands of comets into the inner solar system
Illustration of the passage of other stars near the solar system would envy thousands of comets into the inner solar system
This may sound a lot, but considering the Oort Cloud extends to 0.8 light years, it is obviously too close to us. Dr Bailey-Jones said that a star could disrupt approaching this area and create a threat to Earth. 'Star passing close to the sun can disrupt the Oort cloud, injecting comets into the inner solar system where they can collide with the Earth, "he wrote in the paper. He uses data from NASA ESA Hipparcos, which scans the skies in the 1990s to learn 50,000 future stars.

But this is one of the most accurate estimate of when and where other stars will actually approaching the solar system. Say the position and movement may be one of HIP 85 605, which means it will not pass so close. However, there are other stars that will take its place. A dwarf star called GL 710, has a 90 percent chance of approaching the solar system within 0.3 to 1.4 years to 1.3 million light years.

In addition, he said that the process by which the comet was sent into the solar system would require millions of years, and will likely increase 10 or even hundreds of comets in the year entering the inner solar system. "If anyone Earth at that time in the future, and they see the night sky, they will be very concerned about the star," he explained. "Calculations show that the object will be slightly brighter than Venus, bright enough, but not as bright as the moon or the sun."

But he said a meeting of the Sun with other stars "inevitable", but other stars have the chance really entered our solar system is close to zero. Using data from the Hipparcos, Dr. Bailey-Jones has been able to see into the future about 20 million years.

With the data from the Gaia spacecraft, he hopes to extend this vision to about 50 million years old - which is likely to reveal more stars who never met our solar system, or will do so in the future. This approach not only disturb the Oort cloud which will threaten life on Earth, but also the radiation from the star threaten life on Earth.

"If sufficiently intense - and especially if the star turns into a supernova during the meeting - the ionizing radiation can directly kill the organism, destroy the ozone layer that protects Earth's life from the sun's UV radiation that is harmful, or long-term global warming potential through the nitrogen dioxide produced in our atmosphere, "wrote Dr. Bailey-Jones.

He noted that there are several important events throughout history have been linked to cosmic events. For example the mass extinction of dinosaurs 65 million years ago, almost certainly formed by several major collision.

A layer of iron which has 60 radioisotopes are stored in the seabed 2.8 million years ago, it is thought to be the result of a nearby supernova. And other nearby supernova has been blamed for more mass extinctions in Earth's.

He expects the data taken by the Gaia spacecraft in 2016, which is currently mapped one billion stars in the Milky Way - one percent of stars in our galaxy. And he also wants to use this data to look to the past to find out if there are craters on Earth are formed by the passage of a star near our solar system.
Name

Black Hole,13,Galaxy,44,Image,6,Info,148,Mission and Research,57,Nebula,21,Planets and Satellites,55,Star,39,Theory,33,
ltr
item
Astronomy Science: Another Star Will be Crossing, And The Earth Life Threatening
Another Star Will be Crossing, And The Earth Life Threatening
http://4.bp.blogspot.com/-bsMRw3xT_6A/Vh6Be_S45UI/AAAAAAAABuU/4ykToH1MFLk/s1600/Astronomy%2BScience%2B-%2BStar%2BColision.jpg
http://4.bp.blogspot.com/-bsMRw3xT_6A/Vh6Be_S45UI/AAAAAAAABuU/4ykToH1MFLk/s72-c/Astronomy%2BScience%2B-%2BStar%2BColision.jpg
Astronomy Science
https://www.astronation.science/2015/10/another-star-will-be-crossing-and-earth.html
https://www.astronation.science/
https://www.astronation.science/
https://www.astronation.science/2015/10/another-star-will-be-crossing-and-earth.html
true
6748523832605778119
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy