What Is the Minimum Mass of the Exoplanet Orbiting 70

question 83

Multiple Choice

What is the minimum mass of the exoplanet orbiting 70 Virginis if it has an orbital period of 116.69 days (p = 1.0082 x 10⁷ s) and an average orbital distance a = 7.18 x 10¹⁰ m. The star's orbital velocity is measured to be 291 m/s and its mass is 2.19 x 10³⁰ kg.

• A) 2.73 x 10²⁷ kg
• B) 1.42 x 10²⁸ kg
• C) 3.16 x 10²⁹ kg
• D) 4.67 x 10²⁶ kg