A Star with a Surface Temperature of 4000 K and a Luminosity

question 64

Multiple Choice

A star with a surface temperature of 4000 K and a luminosity of about 10^-2 times that of the Sun is a member of which luminosity class? See Figure 12-10 from the text.

• A) III, giant
• B) I, supergiant
• C) II, bright giant
• D) V, main sequence

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Definitions:

Standard Deviation

A statistical measure of the dispersion or variability of a set of numbers, showing how much variation exists from the average.

Risk-averse

Describes individuals or entities that prefer to avoid risk and would rather settle for a less uncertain outcome than a potentially higher but risky return.

Expected Income

The amount of money an individual or entity anticipates to receive over a certain period, often based on current or past earnings.

Risk-averse

Describes individuals or entities that prefer to avoid risk and choose the option with the least uncertainty and potential for loss.