Type I Supernovae Have an Absolute Magnitude of -20

question 8

Multiple Choice

Type I supernovae have an absolute magnitude of -20. If you discover a Type I supernovae 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
• E) 3,500 Mpc

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Definitions:

Principal

A person who authorizes an agent to act on her or his behalf and subject to her or his control.

Independent Contractor

An individual who provides goods or services to another entity under terms specified in a contract or within a freelance arrangement, not as an employee.

Expressly Authorized

Granted clear and definite permission or authority to do something, usually in a specific manner.

Master

An outdated term signifying an individual who has the right to control the physical conduct of a servant or employee.