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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.

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Which galaxy is thick in the center and has flattened arms?

A spiral galaxy or barred spiral.


How are barred spiral galaxy different from spiral galaxy?

An ordinary spiral galaxy has spiral arms coming out of the core. In a barred galaxy, the central area consists of a bar of stars and the spiral arms are attached to the ends of the bar.


How does a lenticular galaxy differ from a normal spiral galaxy?

It has no spiral arms.


Does your solar system lies in the galaxy's disk or spiral arms?

The spiral arms


What type of galaxy as curved arms?

a spiral galaxy


What is the shape of our galaxy?

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.


A galaxy with a bulge at its center and spiral arms?

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.


What is the difference between a spiral galaxy and a elliptical Galaxy?

The arms of the Spiral Galaxy are mostly located in one plane.


Is an Sab galaxy a type of spiral galaxy?

Yes, a SBC galaxy is a type of a spiral galaxy. The have loosely bounded arms.


What is the difference between a flocculent spiral galaxy and a grand design spiral galaxy?

A grand design spiral galaxy (like Whirlpool Galaxy) has prominent and well defined spiral arms, whereas a flocculent galaxy (like Sunflower Galaxy) has short segments of spiral structure, "fluffy" in appearance, but without the dramatic well defined spiral arms of a grand design spiral.


What is the name of a galaxy with winding arms called?

A spiral galaxy.


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arms