What Useful Purpose Did Variable Stars Serve for Harlow Shapley

question 124

Multiple Choice

What useful purpose did variable stars serve for Harlow Shapley in locating the galactic center?

• A) Variable stars are important spiral arm tracers and thus defined the shape of the Milky Way Galaxy.
• B) The brightness variations of variable stars allowed accurate distances to be measured.
• C) Variable stars emit copious amounts of infrared radiation and are thus visible through interstellar dust that obscures visible light.
• D) Variable stars are concentrated in the galactic center and so defined its direction.

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Definitions:

Bank Reconciliation

Bank reconciliation is the process of matching the balances in an entity’s accounting records for a cash account to the corresponding information on a bank statement, aiming to identify discrepancies and ensure the accuracy of financial records.

Reconciled Cash Balance

The process of matching the balances in an entity's accounting records for a cash account to the corresponding information on a bank statement, to ensure accuracy.

Bank Reconciliation

The process of matching and comparing figures from the accounting records against those shown on a bank statement to ensure they are consistent.

Bank Service Charge

Fees charged by a bank to a customer for account services provided.