The Star $\alpha$ Centauri C and the Star Groombridge 34 B Have the B

question 152

Multiple Choice

The star $\alpha$ Centauri C and the star Groombridge 34 B have the same apparent magnitude, but $\alpha$ Centauri C is 1.3 pc away from Earth and Groombridge 34 B is 3.5 pc away. What is the luminosity of Groombridge 34 B compared with $\alpha$ Centauri C?

• A) 2.7 times brighter
• B) 7.2 times fainter
• C) 2.7 times fainter
• D) 7.2 times brighter

---

Definitions:

Identity Crisis

A period of uncertainty and confusion in which a person's sense of identity becomes insecure, typically due to a change in expected roles or perception of self.

Adolescents

Individuals in the transitional stage of physical and psychological development that typically occurs during the period from puberty to legal adulthood.

Ego Crisis

A critical phase in Erik Erikson's psychosocial development theory, where an individual faces a major conflict that involves reevaluating their identity and purpose.

Middle Adulthood

A developmental stage in human life, usually occurring from ages 40 to 65, characterized by stability, maturity, and responsibility.