What Is a Cepheid Variable Star

question 159

Multiple Choice

What is a Cepheid variable star?

• A) one of several classes of stars that pulsate randomly in brightness
• B) low-mass, horizontal-branch star that pulsates regularly in brightness
• C) star that normally remains constant in brightness but occasionally flares up in brightness by several magnitudes
• D) high-mass star that pulsates regularly in brightness

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Definitions:

Mass Murderers

Individuals who kill four or more people within a short time frame in a single location, often driven by various motives.

Feelings of Persecution

A psychological condition where individuals feel they are being targeted for harm or harassment by others.

Antisocial Personality Disorder

A mental health disorder characterized by a long-term pattern of disregard for, or violation of, the rights of others.

Insensitive

Lacking awareness or consideration for the feelings and circumstances of others; showing little empathy.