Stability of the Solar System essentially the distance from sun to earth). These are now known as the Kirkwood gaps. Some asteroids were later discovered to orbit in these gaps, but their orbits are unstable and they will eventually break out of the resonance due to close encounters with a major planet. Another common form of resonance in the Solar System is spin–orbit resonance, where the period of spin (the time it takes the planet or moon to rotate once about its axis) has a simple numerical relationship with its orbital period. An example is our own Moon, which is in a 1:1 spin–orbit resonance
The Planets had no such patriotic intentions when he originally composed the music, these adaptations have encouraged others to draw upon the score in similar ways throughout the 20th Century. The melody was also adapted and set to lyrics by Charlie Skarbek and titled "World in Union". The song is used as the theme song for the Rugby World Cup and appears in most television coverage and before matches. The Planets The Planets, Op. 32, is a seven-movement orchestral suite by the English composer Gustav Holst, written between 1914 and 1916. Each movement of the suite is named after a planet of