Such a galaxy is called a spiral galaxy.
The Milky Way appears to have a huge (even for a black hole) gravitational object at the center of it, and this is supposed by a lot of scientists to be a black hole. The arms of our galaxy sweep around the center.
Yes, the spiral arms in a galaxy do rotate, but not in the sense that individual stars or gas clouds are physically spinning around a central axis. Instead, they are regions of higher density that move through the galaxy as a wave-like pattern due to gravitational interactions with other objects in the galaxy.
The Sun is located about 26,000 light-years from the center of the Milky Way galaxy. This distance places it in one of the galaxy's spiral arms, known as the Orion Arm. The center of the Milky Way is thought to contain a supermassive black hole called Sagittarius A*.
This type of galaxy is categorized as a spiral galaxy. The bulge at the center contains older stars, while the spiral arms consist of younger stars and gas and dust regions where new star formation occurs. The Milky Way is an example of a galaxy with a bulge and spiral arms.
They are objects that are confined to the arms of a galaxy, i.e. objects that only exist within the spiral arms, and are not found (except very rarely) outside of spiral arms. Examples of tracers are structures to do with star formation, like for example open star clusters, giant molecular clouds or supernova remnants.
The Milky Way appears to have a huge (even for a black hole) gravitational object at the center of it, and this is supposed by a lot of scientists to be a black hole. The arms of our galaxy sweep around the center.
Milky Way: Arms extend from a core full of black holes Elliptical Galaxy: Contains mostly older stars with a red color Irregular Galaxy: Contains dust, gas, and young stars Apex :)
Yes, there are. Most large galaxies, for example the Andromeda Galaxy or our own Milky way, have a supergiant black hole at their core. Now, in the arms of our galaxies there are thousands of black holes. So, yes, black holes do exist in galaxies. Theoretically, a black hole cannot form outside of a galaxy, because to form a black hole you require either one or two superstars, and superstars do not form outside of a galaxy or a cluster of stars.
The Milky Way Galaxy is either a spiral galaxy or a "barred spiral" galaxy in which the spiral arms (vaguely similar to a pinwheel) extend out from the "bar". In either event, the Sun and our solar system are about 2/3 of the way out along one of the spiral arms, and about 65,000 light years from the center of the galaxy.
The galaxy you are describing is a spiral galaxy. These galaxies typically have a dense, thick center known as the bulge, composed of stars and gas, along with flattened arms that extend outward, where stars, dust, and gas are concentrated. The Milky Way is a prime example of a spiral galaxy with these characteristics.
A flattened combination of matter containing stars, gas, and dust in a spiral galaxy can be identified as the galaxy's disk. This structure typically features spiral arms that extend outward from the center, where the galaxy's bulge and often a supermassive black hole are located. The disk is where most of the galaxy's star formation occurs, making it rich in both young and old stars, as well as interstellar material.
a spiral galaxy
Elliptical galaxies.
A spiral galaxy.
A spiral galaxy nucleus contains a mass of stars in a "bulge" and is thought that many contain supermassive black holes at the very core of the nucleus.-In galaxies with tightly wound spiral arms the bulge generally contains old, red stars with low metal content (called population II stars); whereas galaxies with more loose arms generally have younger, blue stars (called population I stars). Some bulges have similarities to the elliptical galaxies and others are similar to disk galaxies.-Evidence of supermassive black holes have been discovered in many galaxies and theorized to exist in many more galaxies (at least the larger ones). Our own Milky Way Galaxy contains a supermassive black hole at its core.
Our galaxy, the Milky Way, is a spiral galaxy. It consists of a central bulge surrounded by spiral arms that contain stars, gas, and dust. We are located on one of the outer arms of the galaxy.
It has no spiral arms.