Question

engage the diagram above shows a mosaic of 40 galaxies. these images were taken with hubble space telescope and show the variety of shapes that galaxies can assume. when astronomer edwin hubble first started studying these various types of galaxies in the 1920s, he realized he needed to develop a way to organize and categorize them. he created a classification scheme in which he grouped similar galaxies together. your job is to do the same thing. in the chart, invent your own four galaxy types and provide a description and three examples for each one.
galaxy type (name and draw) defining characteristics (write a short description, provide enough detail so that anyone could use your scheme) three examples (give 3 grid coordinates)

Explanation:

Galaxies can be classified based on their visual appearance such as shape. Spiral galaxies have a distinct spiral - arm structure with a central bulge. Elliptical galaxies are smooth and ellipsoidal in shape. Irregular galaxies lack a defined shape. Ring galaxies have a circular ring - like structure. We can identify examples in the grid based on these characteristics.

Answer:

Galaxy Type (name and draw)	Defining Characteristics (write a short description, provide enough detail so that anyone could use your scheme)	Three Examples (give 3 grid coordinates)
Elliptical Galaxy: Draw an ellipsoidal shape	Smooth, feature - less ellipsoidal shape with no distinct arms, mostly composed of older stars	C3, D5, F3
Irregular Galaxy: Draw a shapeless mass of stars	No defined shape, often the result of gravitational interactions with other galaxies	B4, H4, A5
Ring Galaxy: Draw a circular ring with a central hole	Circular ring - like structure with a central region that is relatively empty	E4, G4, H1