Instead, after exhausting the process of fusing hydrogen into helium in their nuclei, their outer atmosphere begins to expand.
Intermediate stars like the Sun are not massive enough to undergo a gravitational collapse, triggering a supernova. More interesting is to remember that such a star is the by-product of a red giant. Thus, it was possible to determine that the star that MOA-2010-BLG-477Lb orbits is a white dwarf, about 60% the size of the Sun. When a target and a nearby observable star align with the Earth, it is possible to determine the position of a celestial body by observing the distortions in light that the second causes on the first. The star itself was unobservable because of its extremely weak light, so they had to use the gravitational microlensing technique.
Nature by a team of astronomers from different countries, talks about the detection of MOA-2010-BLG-477Lb, an exoplanet with 1.4 times the mass of Jupiter and a similar orbit using the Keck II telescope at the WM Keck Observatory in Mauna Kea, Hawaii. A white dwarf, orbited by a planet slightly larger than Jupiter, was once a star similar to ours in the distant past, and went through the process of a red giant, which will annihilate our planet in a few billion years.Īstronomers find 1st planet orbiting three suns (contains Déjà vu) The “accident” that is helping to understand stars and planetsĪrtistic representation of how it will be the Solar System in 5 billion years (Credit: Adam Makarenko/WM Keck Observatory) A distant star system 6,500 light-years from Earth has provided an idea of what the distant future holds for the Sun and the Solar System as a whole.
0 kommentar(er)
