półoś wielka

Objects closer to the Sun (with smaller semi-major axis) have shorter years.

However, when the distance to the system is unknown, the semi-major axis may be given as an angle.

The distance a from the center to each vertex is called the semi-major axis.

For the special case of a circle, the semi-major axis is the radius.

One can think of the semi-major axis as an ellipse's long radius.

Conversely, for a given total mass and semi-major axis, the total specific energy is always the same.

It was one of the first asteroids discovered to have a semi-major axis less than Venus.

According to Kepler's third law the period of the orbit is determined by the semi-major axis.

Tidal forces can also change the semi-major axis of an orbit.

The semi-major axis of the companion is 0.23 arcseconds on the sky.