Which Best Describe the Shape and Massed of Galaxies

Earth is a part of this galaxy. An elliptical galaxy looks like a partly flattened luminous sphere.

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Which of the following best describes the size shape and distance of the Andromeda Galaxy on the same scale.

. The first shape to be known was spiral because milky way is a spiral galaxy. They have curved arms that make it look like a pinwheel. The famous astronomer Edwin Hubble studied the galaxies for many years and found that there are four shapes in which the galaxies expand.

Most galaxies are spiral milky way elliptical lenticular and irregular shape. Spiral galaxies range from intermediate to large galaxies with masses in the range of 10 9 to 10 12 solar masses diameters 6 kpc to 100 kpc and luminosities 10 8 to 10 11 solar luminosities. Elliptical galaxies are generally smooth and oval.

Current understanding holds that a galaxys type spiral elliptical or irregular _____. A large weirdly-shaped galaxy that has old stars but is also making lots of new ones. Our Milky Way is a spiral as is the rather close-by Andromeda Galaxy.

This classification system is known as Hubble sequence and the four types are. The stars in a spiral galaxy are concentrated in the central nucleus and in. Most galaxies if left undisturbed should form spiral galaxies and its thought that these galaxies will eventually form elliptical galaxies as they age.

However the mass of the Sun is completely trivial compared to the mass of the Galaxy. Instead they bear the rounded shape of an ellipse a. The observed appearance of a spiral depends on the observers point of view.

However most of them look similar to the images you have seen so far of Virgo Coma and Perseus. Which of the following best describes the size shape and distance of the Andromeda Galaxy on the same scale. The galaxy also has a vast outer spherical region called the corona or dark halo which is as much as 19 million light years in diameter and in addition to dark matter which accounts for most of the Milky Ways mass includes some distant globular clusters the two nearby galaxies called the Magellanic clouds and four smaller galaxies.

NGC 4321 which you see now is a type of Sc galaxy. Spiral galaxies have the shape of a flattened disc with a small spherical nucleus bulging out of the centre. Lenticular or Barred spiral.

What determines the shape of a galaxy. On the following pages there are actual pictures of different galaxies. And there are also galaxies that arent spirals or ovals.

Some galaxies are spiral-shaped like ours. A galaxy with a mix of old and new stars is making some new stars. Label the following diagram using the terms stars arms dust and nucleus.

Best Balance Transfer Credit Cards. Which statement best describes a galaxy. And some galaxies are neither spiral nor elliptical they are irregular.

The Best Credit Cards Of 2022. A low mass galaxy that only has young stars but is making a lot of them. A a grapefruit a few meters away B a compact disk about the length of a football field away C a grapefruit about 1 kilometer away D a compact disk a few meters away.

A planet has less mass than a galaxy and more mass than the star it orbits. In our own galaxy the Milky Way the sun is just one of about 100 to 400 billion stars that spin around Sagittarius A a supermassive black hole that contains as much mass as four million suns. The stars and gas in almost all galaxies move much quicker than expected from the luminosity of the galaxies.

Collisions are commonplace in the universe and cause a lot. Theyre called elliptical galaxies. Spiral galaxies are obviously in the shape of a spiral elliptical galaxies are shaped as an ellipse or a flat circle and irregular galaxies can be.

Scale the Milky Way down to the size of a compact disc. Spirals are large rotating disks of stars and nebulae surrounded by a shell of dark matter. Both are formed by gravitational forces.

Thus for all practical purposes the result about 100 billion times the mass of the Sun is the mass of the Milky Way. Cut the pictures out. Seen from above or below a spiral looks basically round but if viewed from the side a spiral appears very flat.

Elliptical galaxies lack the swirling arms of their more well-known siblings spiral galaxies. Group the pictures using the classification explained by your teacher. The Perseus Cluster is another large cluster of galaxies within 100 Mpc of the Milky Way.

Spiral galaxies are the most common type in the universe. Other galaxies are smooth and oval shaped. The elliptical galaxys mass k velocity dispersion 2 the distance the stars are from the galaxy centerG where k is a factor that depends on the shape of the galaxy and the angle the galaxy is from Earth.

A compact disk a few meters away. You can find a large number of additional images of galaxy clusters at APOD or at Hubblesite. Spiral galaxies look like pinwheel.

Which of these best explains why people on Earth cannot see the entire shape of the Milky Way. The central bright region at the core of a galaxy is called the galactic bulge. They contain very little dust or gas and the stars contained here are.

Plugging numbers into Keplers formula we can calculate the sum of the masses of the Galaxy and the Sun. The first picture shows an elliptical galaxy. The appropriate answer is C.

Most of the mass of our galaxy is located at the galactic center in the form of a massive black hole. Trying to observe the shape of our own Galaxy is like staring at the edge of a. These galaxies can be round nearly spherical or flattened disks.

Spiral type C Sc galaxies are spiral galaxies that have a very small central bulge as well as narrow and well-defined central arms.

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