Redshifts Revealed the Radio Source Cygnus a to Be Moving

question 95

Multiple Choice

Redshifts revealed the radio source Cygnus A to be moving at 17,000 km/s. At this speed it could not have been a part of the Milky Way Galaxy. At this speed how long would it have taken to cross the whole of the visible Galaxy?

• A) a few years
• B) a few million years
• C) a few hundred million years
• D) 10 billion years, almost the age of the Galaxy

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Definitions:

Bank Deposit

Money placed into a banking institution for safekeeping, which can earn interest depending on the type of account.

Weighted Average Float

Weighted average float refers to the average time between when a check is deposited in a bank and when the funds are made available, weighted by the value of each check.

Clearing Times

The period it takes for a transaction to be processed, confirmed, and settled between buyer and seller in the financial markets.