The smallest stars in the universe that have ever been discovered are very diverse. There are millions of stars in this universe.
Every galaxy has its own star. Consisting of various types, the stars also have various sizes. These are some of the smallest types of stars.
Know the 3 Smallest Stars in the Universe
If you look at a star with the naked eye, it must be very small. You can even only see the light.
This is because the Earth is very far from the stars. Basically, a star is one thing outer space the big one.
Baca Juga: Bintang Tercantik di Alam Semesta Dengan Cahaya Paling Terang
The moon, Earth’s natural satellite, is even smaller than the stars. Even so, the moon can be seen more clearly and bigger than Earth because the distance is not as far as the stars.
If we talk about the biggest stars, then there will be no end. It’s time you found out some of the smallest stars. In fact, some are similar in size to the moon.
Proxima Centauri
Proxima Centauri is a red dwarf star located 4.2 light years from Earth. It has the name Centauri because this star is in the constellation Centaurus.
Robert Inner, a Director of the Centauri Observatory, was the first to discover Proxima Centauri in 1915.
Proxima is the star closest to the Sun. Because of its close distance, the angle of this star is measured only about 1/7 from the Sun or about 200,000 km.
However, the density of the smallest star in the universe is 40 times that of the Sun. Proxima is a flare star that has a high brightness due to magnetic activity.
Baca Juga: Inti Bumi Mendingin Lebih Cepat, Berdampak pada Kehidupan?
The mixing of elements at the core of Proxima Centauri through convection and production rates will keep this star on the main sequence for the next four trillion years.
ZTF J1901+1458
This next star belongs to the type of white dwarf. ZTF J1901+1458 is the smallest star in the white kartai classification and the most massive.
Basically, all stars will become white dwarfs at the end of their lives. Stars that fall into white dwarfs are the densest objects in the universe after black holes and neutron stars.
ZTF J1901+1458 you can call a dead star. Even though it’s dead, this star still has a high magnetic content. Even 1 billion times bigger than the Sun.
This smallest white dwarf is relatively close to Earth, which is 130 million light years. The diameter of this star is only about 2,670 miles. Similar to the moon which is 2,174 miles in diameter.
Being one of the smallest stars in the universe, ZTF J1901+1458 spins at full speed in just 7 minutes. The Sun takes 27 days to complete one rotation.
According to the researchers’ theory, stars that have a large mass will evolve into neutron stars, including ZTF J1901+1458.
EBLM J0555-57Ab
Finally there is EBLM J0555-57Ab. This star is recorded to be the smallest star scientists have ever found in history to date.
EBLM J0555-57Ab belongs to the star system EBLM J0555-57. This is a system on three stars. The star system is in the constellation Pictor.
Baca Juga: Pengertian Bintang Kejora, Cahaya Keperakan yang Stabil dari Venus
Astronomers from the University of Cambridge were the first to discover this star. At that time he was in search planet new exo around EBLM J0555-57AA.
Who would have thought, even though they didn’t find a planet, they managed to meet the smallest star in the universe.
At that time, a group of astronomers used experimental data called WASP. Then they noticed consistent dimming of EBLM’s parent star J0555-57AA.
After conducting further research and measuring the object’s mass, astronomers found the object had too much mass to be a planet.
Because of that, they finally classified this object as the smallest dwarf star, even today.
This star orbits its main star in a period of 7.8 days. The radius of the star EBLM J0555-57Ab is also comparable to that of Saturn, which is about 120,000 km.
Before astronomers discovered EBLM J0555-57Ab, the throne of the smallest star in the universe was in the hands of the star Trappist-1. The ultracold star Trappist-1, located in the constellation Aquarius, has a mass of about 0.089 solar masses. (R10/HR-Online/Editor-Ndu)
–
