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What are the 4 types of galaxies?

What are the 4 types of galaxies?

In 1936, Hubble debuted a way to classify galaxies, grouping them into four main types: spiral galaxies, lenticular galaxies, elliptical galaxies, and irregular galaxies.

What is the difference between the 3 types of galaxies?

Galaxies are classified by shape. There are three general types: elliptical, spiral, and irregular. Perhaps the most familiar kind of galaxy are spiral galaxies. They have a distinctive shape with spiral arms in a relatively flat disk and a central “bulge”.

Which type of galaxy is our Milky Way galaxy?

spiral galaxy
The Milky Way is a huge collection of stars, dust and gas. It’s called a spiral galaxy because if you could view it from the top or bottom, it would look like a spinning pinwheel. The Sun is located on one of the spiral arms, about 25,000 light-years away from the center of the galaxy.

How old is our galaxy?

13.51 billion years
Milky Way/Age

Astronomers believe that our own Milky Way galaxy is approximately 13.6 billion years old. The newest galaxy we know of formed only about 500 million years ago.

Which is the most beautiful galaxy?

The Andromeda galaxy is 2.537 million light-years away from Earth in the constellation Andromeda. Its ‘closeness’ to our planet makes it the most distant object visible to the naked eye on Earth. It is the nearest giant galaxy and contains approximately the same number of stars as the Milky Way.

Do galaxies die?

Galaxies die when the stars that live in them stop forming. Now, for the first time, astronomers have witnessed this phenomenon in a distant galaxy. Scientists were able to glimpse a galaxy as it ejected almost half of the gas it uses to form stars.

What are the three main types of galaxies?

Three Main Types of Galaxies. Today, the basis for how we classify galaxies is still rooted in morphology, or how the galaxies appear. Astronomers group galaxies by shape, and although there are many different types of galaxies, most fall into one of three categories: spiral, elliptical or irregular.

Which is an example of an elliptical galaxy?

Elliptical galaxy classification. 3. Irregular and lenticular galaxies. 1. . Spiral Galaxy Classification. Two examples of the spiral galaxies are: The Milky Way. The Andromeda Galaxy.

Which is the largest type of galaxy in the universe?

Elliptical galaxies are football shaped, fat in the center and tapered toward the ends. Stars in an elliptical galaxy spread out evenly from the galaxy’s center. The largest galaxies in the universe are giant elliptical galaxies which may have more than 1 trillion stars. Some elliptical galaxies are as much as 20 times bigger than the Milky Way.

What kind of galaxy is the solar Sistem?

Our solar sistem is located in a Spiral galaxy known as the Milky Way. This type of galaxies is composed of the galaxies that can’t be classified into an elliptical or spiral galaxy. This type doesn’t fit in an structure; it doesn’t possess any defined shape.

What are the 4 types of galaxies?

What are the 4 types of galaxies?

In 1936, Hubble debuted a way to classify galaxies, grouping them into four main types: spiral galaxies, lenticular galaxies, elliptical galaxies, and irregular galaxies.

What types of galaxies are found in the universe?

There are four main categories of galaxies: elliptical, spiral, barred spiral, and irregular. These types of galaxies are further divided into subcategories while at the same time other types of galaxies exist based on their size and other unique features.

How many galaxies are there in space?

The Hubble Deep Field, an extremely long exposure of a relatively empty part of the sky, provided evidence that there are about 125 billion (1.25×1011) galaxies in the observable universe.

What is the biggest galaxy in the universe?

IC 1101
Located almost a billion light-years away, IC 1101 is the single largest galaxy that has ever been found in the observable universe. Just how large is it? At its largest point, this galaxy extends about 2 million light-years from its core, and it has a mass of about 100 trillion stars.

What universe do we live in?

Our home galaxy, the Milky Way, contains at least 100 billion stars, and the observable universe contains at least 100 billion galaxies.

What is at the Centre of a 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.

Where is Earth in the galaxy?

Earth is in the second largest galaxy of the Local Group – a galaxy called the Milky Way. The Milky Way is a large spiral galaxy. Earth is located in one of the spiral arms of the Milky Way (called the Orion Arm) which lies about two-thirds of the way out from the center of the Galaxy.

What are the different types of galaxies in the universe?

There are four distinct types of galaxies in the universe, elliptical, spiral, barred spiral, and irregular. Although these are the four main types, there are various types of galaxies and the way in which they are classified is by their shape.

What kind of stars are in a spiral galaxy?

Spirals that have large, bright bars of stars and material cutting across their central sections are called “barred spirals”. A large majority of galaxies have these bars, and astronomers study them to understand what function they play within the galaxy. In addition to bars, many spirals may also contain supermassive black holes in their cores.

What kind of galaxies are irregular in shape?

There are some subgroups of ellipticals, including “dwarf ellipticals” with properties that put them somewhere between regular ellipticals and the tightly knit groups of stars called globular clusters. Irregular galaxies are as their name suggests: irregular in shape.

Are there stars in the space between galaxies?

It is very rare to find stars in the space in between galaxies. Galaxies sometimes collide with each other, with interesting results. These collisions can trigger bursts of star-formation in addition to changing the shapes of the galaxies that collide.