In the H-R Diagram Shown in Figure 11-28b of Comins,Discovering

question 258

Multiple Choice

In the H-R diagram shown in Figure 11-28b of Comins,Discovering the Essential Universe,6th ed.,the brightest stars in the Pleiades cluster are not on the main sequence but away from it toward the upper right.Explain.

• A) The brightest stars have not yet reached the main sequence and are in the T Tauri phase.
• B) The brightest stars have already evolved through the red giant phase and have now returned to the blue giant phase on their way to the white dwarf phase.
• C) The brightest stars have already become white dwarf stars, as shown by their position.
• D) These blue supergiant stars have already begun to evolve toward the red supergiant phase.

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Definitions:

Single-entry System

A bookkeeping method where each financial transaction is recorded with only one entry to the accounting records, often lacking the detailed accuracy of double-entry accounting.

Financial Statements

Documents that provide an overview of a company's financial condition, including balance sheets, income statements, and cash flow statements.

Undetected Errors

Mistakes or faults in a process, system, or output that remain unnoticed or uncorrected.

Bank Statement Reconciliation

The process of comparing one's personal or business financial records to the bank's records to ensure they match.