The system's secondary-to-primary mean-diameter ratio is 0.643. The Johnston archive derives a diameter of 9.39 kilometers for the moon, and estimates that it has a semi-major axis of approximately 31 kilometers.
The system's secondary-to-primary mean diameter ratio is 0.643. The Johnston archive determines a diameter of 9.39 kilometers for the moon, and estimates that it has a semi-major axis of approximately 31 kilometers.