Quick Answer: What Are The Types Of Galaxies?

What is in the middle of our galaxy?

The centre of the galaxy is a dense and chaotic place, with stars and gas hurtling around the Milky Way’s supermassive black hole, Sagittarius A*.

It has a mass more than 4 million times the mass of the sun crammed into a diameter just about 30 times the sun’s width..

Can humans travel to another galaxy?

The technology required to travel between galaxies is far beyond humanity’s present capabilities, and currently only the subject of speculation, hypothesis, and science fiction. However, theoretically speaking, there is nothing to conclusively indicate that intergalactic travel is impossible.

Where is the sun in our galaxy?

Orion SpurThe Sun, and everything that orbits it, is located in the Milky Way galaxy. More specifically, our Sun is in a spiral arm called the Orion Spur that extends outward from the Sagittarius arm.

What is a galaxy for kids?

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. We live on a planet called Earth that is part of our solar system.

How many galaxies have we named?

All in all, Hubble reveals an estimated 100 billion galaxies in the universe or so, but this number is likely to increase to about 200 billion as telescope technology in space improves, Livio told Space.com.

What is the largest type of galaxy?

IC 1101 is a supergiant elliptical galaxy at the center of the Abell 2029 galaxy cluster and is one of the largest known galaxies. Its halo extends about 600 kiloparsecs (2 million light-years) from its core, and it has a mass of about 100 trillion stars.

How many types of galaxy are there?

fourIn 1936, Hubble debuted a way to classify galaxies, grouping them into four main types: spiral galaxies, lenticular galaxies, elliptical galaxies, and irregular galaxies. More than two-thirds of all observed galaxies are spiral galaxies.

Why are there different types of galaxies?

Explanation: The galaxies that have been undisturbed for billions of years are likely to form spiral, disk shaped galaxies. Smaller galaxies gravitationally attract each other and merge into an elliptical shape. This merging process can go on for billions of years.

Which galaxy is closest to our own?

Canis Major Dwarf GalaxyThe closest known galaxy to us is the Canis Major Dwarf Galaxy, at 236,000,000,000,000,000 km (25,000 light years) from the Sun. The Sagittarius Dwarf Elliptical Galaxy is the next closest , at 662,000,000,000,000,000 km (70,000 light years) from the Sun.

Which is the most beautiful galaxy?

The most beautiful galaxies in the universeGalaxy NGC 6753. … Large Magellanic Cloud. … Andromeda Galaxy. … Cigar Galaxy or Messier 82. … Molinete Galaxy. … Hat Galaxy. … Whirlpool Galaxy. … The Black Eye Galaxy.More items…

How old is our galaxy?

13.51 billion yearsMilky Way/Age

What is the biggest thing in the Milky Way galaxy?

IC 1101The biggest known galaxy is IC 1101, which is 50 times the Milky Way’s size and about 2,000 times more massive. It is about 5.5 million light-years across.

Can you see Milky Way with eyes?

More than 100,000 light years in diameter, with more than 100 billion stars and at least as many planets, the Milky Way is arguably the most impressive feature of the night sky that you can see with the naked eye.

How many Milky Ways are there?

It is estimated to contain 100–400 billion stars and at least that number of planets. The dark matter halo around the Milky Way may span as much as 2 million light years….Milky Way.Observation dataSpiral pattern rotation period220–360 MyrBar pattern rotation period100–120 MyrSpeed relative to CMB rest frame552.2±5.5 km/s12 more rows

What are the 3 types of galaxies?

Galaxy classification Galaxies are classified by shape. There are three general types: elliptical, spiral, and irregular. Perhaps the most familiar kind of galaxy are spiral galaxies.

What galaxy do we live in?

The Milky WayWe live in one of the arms of a large spiral galaxy called the Milky Way.

What universe is Earth in?

Well, Earth is located in the universe in the Virgo Supercluster of galaxies. A supercluster is a group of galaxies held together by gravity. Within this supercluster we are in a smaller group of galaxies called the Local Group. Earth is in the second largest galaxy of the Local Group – a galaxy called the Milky Way.

What type of galaxy is the Milky Way?

spiral galaxyThe Milky Way is a large barred spiral galaxy. All the stars we see in the night sky are in our own Milky Way Galaxy. Our galaxy is called the Milky Way because it appears as a milky band of light in the sky when you see it in a really dark area.

What is the youngest type of galaxy?

However, observations only recently reclassified it as a barred type spiral galaxy. One of the youngest galaxies ever discovered was the I Zwicky 18 galaxy. It was estimated to be around just 500 million years old though recent observations have discovered old stars in this galaxy.

How are galaxies named?

There is no universal naming convention for galaxies, as they are mostly catalogued before it is established whether the object is or isn’t a galaxy. Mostly they are identified by their celestial coordinates together with the name of the observing project (HUDF, SDSS, 3C, CFHQS, NGC/IC, etc.)