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.
When Venus is on the far side of the Sun from Earth, it can be as far as 261 million kilometers away. That varies widely, depending on which part of the orbit the Earth and Venus is. At its closest - during an inferior conjunction - Venus is at a distance of about 41 million kilometers.