0
What else can I help you with?
What are four general shapes of galaxies?
Galaxies have different shapes because of what happens throughout their lives. Any galaxy, at one point or another, will encounter another or many galaxies. When encounters occur, gravity takes over. The larger of the two galaxies will consume the smaller one, this is called galactic cannibalism. The act of absorbing another galaxy will change the size of the galaxy it's shape and even the speed of its rotation. Our own galaxy, The Milky Way, is as large it is (100000-150000 Light years across.) because of galactic cannibalism. The Milky Way is as we speak consuming two other small galaxy. And in about 2 billion years, our nearest nieghbor, the Andromeda Galaxy, will collide with our galaxy. Both the Milky Way and Adromeda galaxy are spiral galaxies, but after they collide the resulting new galaxy will an elliptical galaxy, which looks like a bright white sphere.
What are some physical characteristics of elliptical galaxies?
Elliptical galaxies are generally round or oval in shape, lacking the distinctive spiral arms seen in spiral galaxies. They typically have a smooth and featureless appearance, with older star populations and little ongoing star formation. Elliptical galaxies also tend to be more massive and contain mainly older stars.
Are nebulas in elliptical galaxies?
Because of their age, elliptical galaxies are believed to have older stars and less gas and dust in their insterstellar medium than other types of galaxies, and thus their nebulae are less common. However, nebulae are presumed to exist in almost all galaxies; and some recent observations hint that the central black holes of elliptical galaxies may tend to preserve interstellar gas by preventing it from cooling enough for star formation.
What color do elliptical galaxies tend to be and why?
Elliptical galaxies tend to be reddish in color because they are made up of older stars that emit more red light. These galaxies have used up most of their gas and dust, resulting in a lack of ongoing star formation. This makes their overall color appear reddish compared to younger, bluer galaxies.
What different shapes do galaxies form?
Galaxies can form different shapes including spiral, elliptical, and irregular. Spiral galaxies have a distinct spiral arm structure, elliptical galaxies are more rounded and oval-shaped, while irregular galaxies lack a defined shape.
Can the approximate size of a galaxy be measured by the Doppler effect?
false Irregular galaxies are different from elliptical and spiral galaxies because the contain very few stars. Fasle
Why are irregular galaxies irregular?
An irregular galaxy is a galaxy that does not have a regular shape, like a spiral or an elliptical galaxy.[1] The shape of an irregular galaxy is uncommon - they do not fall into any of the regular classes of the Hubble sequence, and they are often chaotic in appearance, with neither a nuclear bulge nor any trace of spiral arm structure.[2] Collectively they are thought to make up about a quarter of all galaxies. Most irregular galaxies were once spiral or elliptical galaxies but were deformed by gravitational action. Irregular galaxies also contain abundant amounts of gas and dust.
What are similarities between elliptical and spiral galaxies?
While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren't nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born
What are the different names of galaxies in the universe?
Galaxies in the universe have different names based on their shape and structure. Some common types of galaxies include spiral galaxies, elliptical galaxies, and irregular galaxies. Each type has its own unique characteristics and features.
What are 2 ways in which galaxies can differ from one another?
Constellations are patterns of stars that we see in the sky. There are 88 official constellations, like Leo, Orion, Taurus etc. We are in the galaxy called the Milky Way, as are all the stars you can see in all of those constellations. A galaxy is a massive collection of stars. We can see some other galaxies, such as Andromeda, but they just look like a clump of dust in the sky because they are so far away, and we can't pick out individual stars.
What are four general shapes of galaxies?
Galaxies have different shapes because of what happens throughout their lives. Any galaxy, at one point or another, will encounter another or many galaxies. When encounters occur, gravity takes over. The larger of the two galaxies will consume the smaller one, this is called galactic cannibalism. The act of absorbing another galaxy will change the size of the galaxy it's shape and even the speed of its rotation. Our own galaxy, The Milky Way, is as large it is (100000-150000 Light years across.) because of galactic cannibalism. The Milky Way is as we speak consuming two other small galaxy. And in about 2 billion years, our nearest nieghbor, the Andromeda Galaxy, will collide with our galaxy. Both the Milky Way and Adromeda galaxy are spiral galaxies, but after they collide the resulting new galaxy will an elliptical galaxy, which looks like a bright white sphere.
What are the four galaxies?
The 4 types of galaxies are spiral, barred spiral,elliptical and irregular. 1. Spiral galaxy is easiest to identify due to its spiral structure and has its dust and gas scattered out evenly. Two good examples are the Milky Way Galaxy and Andromeda Galaxy. 2. Barred Spiral looks somewhat like a spiral galaxy, but in the first stages. Rather than having the same look as the spiral galaxy, the gas and dust in a barred galaxy are compressed near the center, with unevenness of the gas and dust, even though it still forms somewhat of a spiral. 3. Elliptical Galaxies are one of the largest galaxies with billions of solar systems clustered to appear as one star. With dust and gas scattered throughout, these galaxies appear to be a round shape and tend to hardly contain interstellar matter. 4. Irregular galaxy is also easy to identify because it is poorly structured and are even sometimes called dwarf irregular galaxies.
What are some physical characteristics of elliptical galaxies?
Elliptical galaxies are generally round or oval in shape, lacking the distinctive spiral arms seen in spiral galaxies. They typically have a smooth and featureless appearance, with older star populations and little ongoing star formation. Elliptical galaxies also tend to be more massive and contain mainly older stars.
How are galaxies classified in the field of astronomy?
Galaxies are classified in astronomy based on their shape, size, and structure. The main types of galaxies are spiral, elliptical, and irregular. Spiral galaxies have a central bulge with spiral arms, elliptical galaxies are oval-shaped with no distinct structure, and irregular galaxies have a chaotic shape. Additionally, galaxies can be further classified based on their activity level, such as active or passive galaxies.
Are nebulas in elliptical galaxies?
Because of their age, elliptical galaxies are believed to have older stars and less gas and dust in their insterstellar medium than other types of galaxies, and thus their nebulae are less common. However, nebulae are presumed to exist in almost all galaxies; and some recent observations hint that the central black holes of elliptical galaxies may tend to preserve interstellar gas by preventing it from cooling enough for star formation.
What color do elliptical galaxies tend to be and why?
Elliptical galaxies tend to be reddish in color because they are made up of older stars that emit more red light. These galaxies have used up most of their gas and dust, resulting in a lack of ongoing star formation. This makes their overall color appear reddish compared to younger, bluer galaxies.
What different shapes do galaxies form?
Galaxies can form different shapes including spiral, elliptical, and irregular. Spiral galaxies have a distinct spiral arm structure, elliptical galaxies are more rounded and oval-shaped, while irregular galaxies lack a defined shape.
