If a Dwarf Elliptical Galaxy Has an Absolute Magnitude of -15

question 23

Multiple Choice

If a dwarf elliptical galaxy has an absolute magnitude of -15 and could be detected to an apparent magnitude of +20,how far away could such a galaxy be and still be detected?

• A)100 kiloparsecs
• B)1 megaparsec
• C)10 megaparsecs
• D)100 megaparsecs

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