What Are the Characteristics of an Open Cluster of Stars

question 23

Multiple Choice

What are the characteristics of an open cluster of stars?

• A)mostly found above and below the galactic plane
• B)old age and millions of members
• C)a few hundred, mainly main sequence stars
• D)All stars are much more massive than our Sun.
• E)All stars are about the same age and luminosity.

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Definitions:

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Inflammation of a vein accompanied by the formation of blood clots within the vein.

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The body system comprising the heart and blood vessels, responsible for circulating blood and transporting nutrients and oxygen throughout the body.

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A branch of medicine focusing on the health of the female reproductive systems and the breasts.

Medical Abbreviation

A shortened form of a word or phrase used in medical documentation and communication.