What defines an S-type orbit in a binary star system?
Answer
The planet orbits only one of the two stars
An S-type orbit is defined as a configuration where the planet orbits only one star within the binary pair.

Related Questions
What is the Habitable Zone (HZ) fundamentally defined by?What does the Habitable Zone (HZ) concept primarily act as when searching for exoplanets?How does the HZ location change around hotter and more luminous stars like A or F-types compared to the Sun?What characteristic dictates where a system’s Goldilocks Zone lies?What planetary characteristic plays a critical role in maintaining surface pressure and trapping heat within the HZ?What happens to planets orbiting beyond the outer edge of the HZ?What complicates the existence of a stable HZ in systems with more than one star?What defines an S-type orbit in a binary star system?What is the consequence of a planet orbiting far apart in a P-type orbit in a wide binary system?Why might a planet situated mathematically in the middle of the HZ still be functionally dry?