Where a stipulator had no interest in the performance for the third party (and provided the stipulatio alteri was phrased correctly), the promisor first had to confirm the promise by oath in order to render the natural obligation into a civil obligation.
How far away is Venus from Earth? The planet Venus is the second planet from the sun and Earth is the third. Venus is the closest planet to Earth. It is about 25 million miles (40 million kilometers) away from Earth.
Please note that the distance from Earth to Moon is quite insignificant compared with the distances to the Sun, or to other planets. So, how far is Venus from Earth? Unfortunately there's no fixed answer because the distance is always changing, as the planets move in their orbits.