Select all that apply. What does the Hubble Tuning Fork represent? a classification scheme for...

Select all that apply.

What does the Hubble Tuning Fork represent?

	a classification scheme for elliptical, spiral, and irregular galxies.
	the evolutionary path of a galaxy from elliptical to spiral
	the evolution of a star into a galaxy
	a visual representation of the three galaxy types

Expert Solution

✓ a classification scheme for elliptical, spiral, and irregular galaxies

× the evolutionary path of a galaxy from elliptical to spiral

× the evolution of a star into a galaxy

✓ a visual representation of the three galaxy types

So here if you read about Hubble Tuning Fork diagrams you will know that "it is a classification scheme for types of galaxies observed in our universe". And it observed and believed that it doesn't show evolution of a galaxy. Even Hubble himself denied thst when he was asked about these diagrams. Also, it has nothing to do with a single star. (Read about HR Diagrams and Stellar Evolution). And finally about fourth option, since Hubble Tuning Fork Diagram is a "Morphological" classification, we can figure out the visual appearance of any galaxy from its position on the Fork diagram.

Hence, we have option A and option D as the correct options. While B & C are wrong.

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If you still have any doubt please let me know in the comments. All the best for your exams :)

genius_generous answered 2 years ago

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