Type Ia Supernovae Have an Absolute Magnitude of -20

question 55

Multiple Choice

Type Ia supernovae have an absolute magnitude of -20.If you discover a Type Ia supernova in a distant galaxy that has an apparent magnitude of 22,then how far away is this galaxy?

• A) 0.3 Mpc
• B) 40 Mpc
• C) 1,200 Mpc
• D) 2,500 Mpc

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Definitions:

Mitchell Thomashow

An environmental educator and author known for his work on ecological identity and environmental learning.

System Use

The manner in which a system, such as a software application or a technological device, is employed by users to achieve specific objectives.

Ecotechnologies

Innovative applications that utilize ecological principles and practices to solve environmental problems and improve the health of the planet.

Environmental Degradation

The deterioration of the environment through depletion of resources such as air, water, and soil; the destruction of ecosystems and the extinction of wildlife.