Yes
A star can be turn into a planet. But this change is possible only for a certain type of star, called a brown dwarf.
Some
scientists do not consider brown dwarf stars as real stars because they do not
have enough mass to initiate the nuclear fusion of conventional hydrogen. At
the same time, some scientists do not consider brown dwarfs to be real planets
because they are usually present in the center of the solar system as a star.
The brown dwarf is very mysterious. The mass of the brown dwarf is greater than
that of the true planets (about 13 times greater than the mass of Jupiter) and
less than the smallest true mass (80% less than Jupiter's mass).
Although
a brown dwarf does not have the intrinsic potential of a gravitational pull to
initiate nuclear fusion like a real star. But it has the heavy hydrogen or
deuterium to initiate the nuclear fusion process. The little brown dwarf emits
a large amount of light and heat energy during the nucleation process of its
heavy hydrogen at the beginning of life. The resulting new little brown dwarf
shines like a real star.
Although
its name is a slightly brown dwarf, it does not look a bit brown but it does
look reddish-brown or orange-brown. A little brown dwarf uses its heavy
hydrogen to start life as a star. And it goes into darkness and becomes cold,
and spends the rest of its life like a planet. The heavy hydrogen atom is
similar to a regular hydrogen atom, the only difference being that there is a
neutron along with the protons in its nucleus. This extra particle in the
center makes it extra heavy. It acts like neutron nuclei or glue particles
Which makes it easier to combine the two atoms of heavy hydrogen.
In
addition, heavy hydrogen is much less rare than hydrogen in the universe and
stars. So a little brown dwarf can't burn its normal hydrogen. And your heavy
hydrogen can quickly burn out. As a result, a little brown dwarf stops the
energy of light and heat at an early stage in its life. After that, it becomes
permanently cold and tired, and the process continues until it behaves like a
planetary Jupiter.
Despite
this fact, a little brown dwarf exists like a real star in the center of the
solar system. It spends the rest of its life looking and behaving like a
planet.
This
type of solar system has a bunch of planets that rotate around a large central
planet. There is no star in it. Such a solar system is very cold and dark. One
important thing is that very few brown dwarfs rotate around any regular stars.
In
2018, with the help of telescope, more than 3000 little brown dwarfs have been
discovered. This does not mean that the little brown dwarf is rare. It just
means that the little brown dwarfs are hard to find. Because for most of its
life a little brown dwarf is as dark as a planet. In recent studies, it has
been estimated that our galaxy has almost as much brown dwarf stars as actual
stars.
