That would be Earth.
Earth is one astronomical unit away from the sun.
Planet Earth.One astronomical unit is roughly the distance between planet Earth and the Sun.
The Earth. The average sun to Earth distance is how one Astronomical Unit is defined (1 AU).
Earth is one astronomical unit (AU) away from the sun. An astronomical unit is the average distance between the Earth and the Sun.
The planet that is one astronomical unit (AU) from the sun is Earth. An astronomical unit is defined as the average distance between the Earth and the Sun, approximately 93 million miles (150 million kilometers).
Earth is one astronomical unit from the sun. The average distance between the sun and Earth is the definition of an astronomical unit.
Earth. An astronomical unit is the distance from the Earth to the Sun.
One AU is the distance between Earth and the Sun. No planet is that big across so you can only be talking about distance from the sun and in that case Earth by definition has an astronomical unit.
It is the earth that is in orbit one astronomical unit (AU) from the sun. That's where the AU came from. One AU is the mean distance from the sun to the earth. A link can be found below.
Earth. The average sun to Earth distance is how one Astronomical Unit is defined (1 AU).
Earth. An astronomical unit is set as the distance between Earth and the Sun.
Earth. This is how an astronomical distance is defined, Earths average distance from the sun.