An Extrasolar Planet in the HD 4308 System Orbits Its

question 9

Multiple Choice

An extrasolar planet in the HD 4308 system orbits its parent star at a distance of 17.1 million kilometers and takes 15.56 Earth days to complete one orbit. Given this and assuming that planet has a negligible mass compared to the parent star, what is the mass of the parent star?

• A) 3.25 ×10³⁰ kg
• B) 2.00 × 10³⁰ kg
• C) 1.25 × 10³⁰ kg
• D) 1.64 × 10³⁰ kg

---

Definitions:

Price-earnings Ratio

A valuation ratio of a company's current share price compared to its per-share earnings, used to gauge if a stock is over- or under-valued.

Financial Analysis

The evaluation of a company's financial statements and other financial information to assess its performance, stability, profitability, and liquidity.

Sensitivity Analysis

A technique used to determine how different values of an independent variable impact a particular dependent variable under a given set of assumptions.

Variance Analysis

The process of examining differences between planned financial outcomes and actual financial performance.