Assertion: planet's velocity | /r/HasProperty | halved
Facets:
Source sentences:
text: Hence velocities are halved and orbital periods remain the same.
text: Scaling of distances while keeping the masses the same (in the case of point masses, or by reducing the densities) gives similar orbits; if distances are multiplied by 4, gravitational forces and accelerations are divided by 16, velocities are halved and orbital periods are multiplied by 8.
text: Hence velocities are the same and orbital periods are halved.