You must have seen a shining star in the sky at night, that shining star is actually not a shining star, it is a supernova. Today we are going to discuss complete information about supernova, what is supernova?, Types of Supernova, How bright a supernova is? And how common a supernova is? So, without further ado, let us get straight into the matter!
What is Supernova?
Whenever there is an explosion of a star and that explosion is super powerful and due to that explosion, which emits a lot of light, this whole process is called supernova or in other words when a star’s lifetime comes to an end or else he is in a state of dying, then the star explodes for some reason and when the star explodes, it emits a large amount of light, then we call this whole process a supernova.
Types of supernova
Astronauts have divided supernova into four types, whose information I will give you below:
1. Type Ia Supernova
This supernova shows a little bit of carbon and a little bit of hydrogen in its spectra. It also contain some calcium, hydrogen and silicon.
2. Type Ib supernova
This type of supernova contain a small amount of hydrogen in his spectra and they also show Helium in their spectra.
3. Type Ic supernova
This type of superovers contain small amounts of hydrogen and helium.
4. Type II supernova
This type of supernova contains a lot of hydrogen and helium in his spectra.
Formation of supernova
Formation of a supernova occurs when star changes center or core. This change happens in two ways and both formed supernova.
The first type of supernova would have occurred in the Binary star system. Binary Star are two stars that orbit the same point. One of these two stars, a carbon-oxygen white dwarf, steals matter from its other star.
At last the white dwarf collects a lot of matter. Due to the presence of a lot of matter, the star explodes and resulting a supernova explosion.
A second supernova occurs when a star comes in dying position, When the lifetime of a star comes to an end then supernova occur. As the star runs out of its nuclear fuel then some of its mass starts to flow in its core.
Finally the core becomes so heavy that it cannot withstand the force of its own gravity and finally the core breaks down which results in a massive supernova explosion.
How bright is a supernova
According to the Astronauts study, a normal explosion of the start do not emits a lot of lights but when a supernova happens, there will be a lot of light emits. Let us understand with examples
When a supernova happen in a galaxy, then there will be a very high light emits due to that supernova and can make the whole galaxy shine for a week.
Astronauts have also seen some observations that show, a supernova can make a whole galaxy shine for a month.
How common are supernova?
There are many galaxies in this universe, If all the galaxies are merged, then the supernova becomes common because supernovas always happen in some galaxy.
In 2016, according to the study there are more than 2 trillion galaxies in the universe and according to the study of astronauts, on average a supernova will occur about once every 50 year in a milky way.
What can we learn from supernova?
Scientists have learned a lot of things about universe by studying supernova. When a supernova occurs, a large amount of energy and neutrons releases in the form of gold, silver and uranium and it is heavier than iron.
Gold, silver and uranium which are made from the explosion of massive star. When supernova happens, these elements will spread all over the space and the speed of element is 30 thousand km per second.
Will our sun go supernova and become black hole?
NO, Sun never go into a supernova because it doesn’t have enough mass to explode. The Sun would need to be 20 times more massive to end its life as a black hole. Some smaller star big enough to go in supernova but same stars are too small to become black hole.
After supernova these stars collapse into super- dense structures are called neutron star but sun size is not being enough, to make it a neutral star it one-tenth mass needed.
so, sun can never go in supernova and never become black hole.
Are supernova in milky way?
If we talk about the history of supernova, then it was first observed in 185 AD. It is the oldest supernova ever recorded by Humankind. At that time many such supernovas were present in the Milky Way. This suggests that Milky Way has Supernovas.
The Supernovas in the Milky Way happens between 25 to 100 years. It can be visible at any point of time in a day. It is also estimated that it may be a hundred times larger than Venus. Our scientists have studied 20 reports and announced 1006 Supernovas have happened so far.
How long a Milky Supernova takes?
If scientists are to be believed, it can happen anytime between 25 years to 100 years but scientists say that it happens once every 50 years.
Interesting facts about Supernova
- When a star reaches the end of its life and explodes then SUPERNOVA occur and it emits powerful lights.
- When this light emits then shine the whole galaxy.
- The speed of the material that happens due to the star’s explosion is 30 thousand kilometers per second.
- SN 1006 has been the largest supernova recorded yet.
- In 1985, a supernova was observed in the Andromeda Galaxy and his name was S Andromeda and we can see this supernova from Earth without a telescope.
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SUPERNOVA amazing events that happen can make the whole galaxy shine for a week or even a whole month. you can see it from anywhere in the whole universe.
There are many galaxies in this universe, If all the galaxies are merged, then the supernova becomes common because supernovas always happen in some galaxy. The sun can never go into supernova because it has not enough mass.
FAQ related to Supernova
Q- Can we see supernova from earth?
Ans- We can see the supernova in a very rare case from the naked eyes.
Q- What we learn from supernova?
Ans- Scientist learn many things from supernova. It is used for supernova to measure distances of space.