Recently a team of scientists led by Brazilian astronomers revealed their discovery of two new planets orbiting a star with Sun-like characteristics.
According to the G1 news portal, the two exoplanets – planets located outside the solar system – with the names of ‘super-Neptune’ and ‘super-Earth’, which orbit a star, HIP 68468, are among the first ones discovered by Brazilian astronomers, shortly after the discovery of a planet similar to Jupiter, announced in 2015.
Jorge Melendez, a professor at the Institute of Geophysical Astronomy and Atmospheric Sciences at the University of São Paulo, who led this research, said that the objective of the study, already published by the journal Astronomy & Astrophysics, was to compare our solar system with other systems Planetary systems.
According to Jorge, this planetary environment around the star HIP 68468, which has similar characteristics to the Sun, is at a distance of about 300 light-years from Earth, and is very different from ours.
These new planets, although they have characteristics as well as a mass, similar to the planet Earth and Neptune, these planets orbit at a distance much closer to their star than the Earth from the Sun, which raises the possibilities of these planets passing from a region more external, to the innermost region of its own planetary system.
“If the planets migrate in the solar system, our planet would be destabilized, with a chaotic orbit and risk of colliding with another planet, being ejected from the solar system or towards the sun,” says Jorge, quoted by portal G1.
The discovery of these two new planets was possible thanks to the observations made during 43 nights between 2012 and 2016, through an instrument coupled in the telescope of the European Southern Observatory (ESO), located in the Atacama Desert in Chile.