The Star Regulus,in the Constellation Leo,appears Brighter Through a Blue

question 108

Multiple Choice

The star Regulus,in the constellation Leo,appears brighter through a blue filter than it does through a yellow filter.Suppose that a second star is found that has the same brightness as Regulus through the blue filter but is brighter than Regulus through the yellow filter.From this information,we can say conclusively that the second star has:

• A) a higher temperature.
• B) the same temperature but a higher luminosity.
• C) the same temperature but a lower luminosity.
• D) a lower temperature.

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Definitions:

Corpor/e

A term referring to the body as a whole or to a body or bodily part; in medical terms, it often relates to the main part of a structure.

Cholesterol

A waxy substance found in the blood and in all your cells, which is vital for producing hormones, vitamin D, and bile for digestion.

Bloodstream

The flowing blood within the circulatory system of the body.

Lipoprotein

A molecule consisting of protein and fat, which transports fats in the blood and lymphatic system.