Discovery of a death star that ate its planet
According to a post published by the journal Astronomy & Astrophysics, the star HIP68468 "ate" one or two surrounding planets, the scientists have nicknamed "Death Star". It is located about 300 light years from Earth and age reached 6 billion years. Since it has several similarities with the Sun, The researchers wonder if our planet would also have the same destiny.
The amount of lithium metal on HIP 68468 has convinced astronomers.
The scientists used the 3.6 m telescope belonging to the La Silla Observatory (Chile) to study this star. They noticed that in relation to its age, the lithium amount is four times greater than normal, the same applies to heat resistant metals. However, these materials are particularly abundant in the rocky planets like Earth.
In conclusion, HIP68468 absorbed one or two planets located in its system. Debra Fischer, professor of astronomy at Yale University, compares the situation to "a cat sitting next to a bird cage. If he has yellow feathers in his mouth, we can bet on the fact that he swallowed a canary. "
As HIP68468 looks very similar to the Sun, should we worry? Jacob Bean,post co-author says that this event "Is not coming soon". Nevertheless, scientists have long understood that the Sun will probably "eat" Mercury and Venus within 5 billion years. Indeed, it will turn into a red giant and the Earth will vaporize into the stellar atmosphere because of the heat. In this context, no life form would be possible within 1.5 billion years because of radiation.