Question: What Is The Rarest Type Of Star?

What are the 7 types of stars?

There are seven main types of stars.

In order of decreasing temperature, O, B, A, F, G, K, and M..

Which stars last the longest?

red dwarfsThe Life Cycle of a High-Mass Star Generally, the bigger a star is, the faster it uses up its supply of nuclear fuel, so the longest-lived stars are among the smallest. The stars with the longest lifetimes are red dwarfs; some may be nearly as old as the universe itself.

What if our sun was a blue giant?

The colour of a star is directly related to the temperature of a star. Sun is more or less a normal star with surface temperature around 6000K and yellow in colour. … So imagine if sun would be a blue star, it would be so hot that it would become nearly impossible for a planet at a distance as earth to sustain life.

What is the hardest thing in the world?

Below are the 10 strongest materials known to man:#8 Nanospheres / Nano-Kevlar. … #7 Diamond. … #6 Wurtzite Boron Nitride. … #5 Lonsdaleite. … #4 Dyneema. … #3 Metallic Glass. … #2 Buckypaper. … #1 Graphene. One-atom-thick sheets of carbon are 200 times stronger than steel.More items…•

What is the strongest thing in the universe?

These explosions generate beams of high-energy radiation, called gamma-ray bursts (GRBs), which are considered by astronomers to be the most powerful thing in the universe.

How does a blue giant star die?

The Death of Blue Supergiants As we mentioned above, supergiants will eventually die as supernovae. When they do, the final stage of their evolution can be as a neutron star (pulsar) or black hole. Supernova explosions also leave behind beautiful clouds of gas and dust, called supernova remnants.

Which star has the shortest lifespan?

The most massive stars have the shortest lifetimes. Because they have most fuel, they burn it so prodigously that their lifetimes are very short. A stars time on the main sequence varies from a few million to 2×1011. As we will see later, the way in which a star evolves depends on its mass.

Which color star is the coolest?

redThe hottest stars tend to appear blue or blue-white, whereas the coolest stars are red.

What is the rarest thing in space?

Now astronomers have spotted a bizarre star that may prove to be one of the rarest objects ever, with maybe as few as five or six of them in the galaxy. The object in question is known as J005311, located in the constellation Cassiopeia about 10,000 light-years from Earth.

What is the most common type of star?

Red dwarfs are by far the most common type of star in the Milky Way, at least in the neighborhood of the Sun, but because of their low luminosity, individual red dwarfs cannot be easily observed. From Earth, not one that fits the stricter definitions of a red dwarf is visible to the naked eye.

Are Blue Stars rare?

Blue Period Luminous blue variable (LBV) stars are indeed incredibly rare; astronomers have only identified about 20 (maybe) and suspect there are only a few hundred in the Milky Way, tops. … That puts their surface temperature in the 10,000 – 25,000K range; several times hotter than our own star.

How hot is the hottest star in the universe?

The Star WR102 which is a blue star with surface Temperature of over 2,10,000 kelvin is the hottest star ever recorded. With an increase in Temperature, the star turns bluish in color.