What are Nebulas and it's types
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| What are Nebulas |
In this topic " What are Nebulas" we can cover basic tutorial of Nebulas and what are the types of nebulas and how nebulas formed and many more you can see below..
🔘What are Nebulas
The large body of gas,dust and clouds that formed from interstellar gas and dust and after star explosion that is known as nebulas.
Basically Nebulas formed from interstellar gases that is present in whole universe.In Nebulas there are many stars forms when Nebulas gas is highly dense due to gravity there start a nuclear fusion than you know that after nuclear fusion the start glowing this is slow process.
You think 'how it's possible in nuclear fusion there required heat and two main gases first is hydrogen as a fuel and helium'.(It's answer is in interstellar gas there are about 75% hydrogen and 25% helium present.
🔘How big as big as Nebulas?
Most of the nebulas are vast in size.Most of them have more than 100 million light years diameter.But it's density is very low.
🛸What are the types of Nebulas
There are mainly five types of Nebulas found in visible universe are planetary Nebula,emission Nebula, reflection Nebula, Dark nebula and supernova remnants.
1. Planetary Nebulas
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| Planetary Nebulas formation computer simulation |
:- planetary Nebula is just like a emission nebula.it is a big gas cloud that is released by a red giant star.But it's name planetary Nebula is just a misnomer this is not realated to any planet but its name is taken from old scientists who see it first and named it.
All the planetary Nebula are formed when the Star is about 1-8 solar mass were exploded.Our sun is also become this type of Nebulas in future.
Some planetary Nebula are NGC 6543 :- The cat eyes and NGC 6326
2. Emission Nebulas
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| Emission Nebulas Ring Nebula |
Emission Nebulas are the big cloud of glowing gas that's reason for glowing is ultraviolet photons that's comes from nearby stars and begining of new young star. In this also come planetary Nebula where the deadly star throw out his radiation, energy and gases that is glow.This nebulas is full of ionised gas.
Some of the emission Nebulas are Ring Nebulas also a planetary Nebula and LHA 120-N 55
3. Reflection Nebulas
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| Reflection Nebulas |
Reflection Nebulas are the big cloud of interstellar gas that is glow in the light that come from nearby stars or star.It stars has no enough light so it cannot be come in emission Nebulas.So its star cannot uonized its gas.Buy it is visible because it can reflect light.
It reflects the light because it tiny particles is made of carbon and diamond and iron and nickel compound so it reflects the light.
Some of the reflection Nebulas are IC 2118 and IC 2631.
4. Dark Nebulas
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| Dark Nebulas |
Dark Nebulas are the opposite of reflection Nebulas this types of nebulas cannot reflects light because it a big and dense cloud of molecules.It cannot reflects light but in backgrounds of this nebulas presented star's light is blocked so, through radio telescope scientists clicked her images.Small dark Nebulas known as Book globules.
It's cloud is full of Monoxide and nitrogen.some of the dark Nebulas are LDN 1768 and LDN 1774.
5. Supernova remnants
Supernova remnants
Supernova remnants is the big cloud of hot dusty plaza particles that is throw out after supernova of star when the Star's fuel is end and it's gravity can compress full mass into center than a big blast is he'll.Than the Star throw all his particles away at the speed of 30000 km per second.This spread in universe thousands of years.
In this Nebulas there present the charge particles of the Star that's end with supernova.
Some of these nebulas are SN 1006 and SN1054.
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Note :- In this topic I only describe nebulas and it's parts.so you can ask me any thing that related to this particular topic.I can gave it's answer by quick and positive.And you can follow on this blog to get various interesting topics like this by through your email.
Writes by
Aditya