What are the 3 galaxies types?

Types of Galaxies Astronomers classify galaxies into three major categories: elliptical, spiral and irregular. These galaxies span a wide range of sizes, from dwarf galaxies containing as few as 100 million stars to giant galaxies with more than a trillion stars.

What are the top 3 galaxies?

The Milky Way isn’t really the center of anything; that’s just the way the image is drawn. The 3 largest galaxies in the Local Group are, in descending order, the Andromeda galaxy, the Milky Way, and M33 also known as the Triangulum Galaxy. Image via Wikimedia Commons.

What are the 3 things galaxies are composed of?

Galaxies are composed of stars, dust and dark matter, all held together by gravity.

What are the 3 types of galaxies and which one do we live in?

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”.

What are normal galaxies?

Active galaxies are galaxies that have a small core of emission embedded at the center of an otherwise typical galaxy. For normal galaxies, we think of the total energy they emit as the sum of the emission from each of the stars found in the galaxy, but in active galaxies, this is not true.

What are the top 5 biggest galaxies?

Massive galaxies in the universe; Top 10 largest galaxies in the universe

• UGC 2885 – 832,000 ly (255,000 pc)
• Comet Galaxy – 600,000 ly (180,000 pc)
• Condor Galaxy – 522,000 ly (160,000 pc)
• ESO 444-46 – 402,200 ly (123,320 pc)
• Tadpole Galaxy – 280,000 ly (86,000 pc)
• Andromeda – 220,000 light-years (67,000 pc)

What galaxy is earth on?

the Milky Way
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 main galaxies?

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 stars are there?

There are approximately 200 billion trillion stars in the universe.

What are the five main types of galaxies?

and are formed by smaller galaxies colliding into one another.

What scientist discovered the three main types of galaxies?

Almost all current systems of galaxy classification are outgrowths of the initial scheme proposed by the American astronomer Edwin Hubble in 1926. In Hubble’s scheme, which is based on the optical appearance of galaxy images on photographic plates, galaxies are divided into three general classes: ellipticals, spirals, and irregulars.

What are the four names of the galaxies?

List of Naked Eye Galaxies Large Magellanic Cloud (Magnitude 0.9) Small Magellanic Cloud (Magnitude 2.7) Andromeda Galaxy (Magnitude 3.4) Triangulum Galaxy (Magnitude 5.7) Centaurus A (Magnitude 6.84) Bode’s Galaxy (Magnitude 6.94) Sculptor Galaxy (Magnitude 7.2)

What are the three shapes of galaxies?

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.