Final answer:
The question is about astronomy in physics, dealing with the relationship between a planet's mass, radius, and its gravitational and orbital characteristics.
Step-by-step explanation:
The question pertains to the field of astronomy within physics, specifically focusing on the relationship between a planet's mass, radius, and orbital characteristics in relation to its star. When analyzing a planet with 12 times the mass of Earth and 1/12 its radius, we are dealing with concepts such as gravitational force and orbital mechanics, which are fundamental topics in physics. Such calculations often involve principles from Newton's law of universal gravitation and Kepler's laws of planetary motion.