Geocentric model the coordinate system in order to predict the motions of planetary bodies, though doing so may make calculations easier to perform or interpret. A geocentric coordinate system can be more convenient when dealing only with bodies mostly influenced by the gravity of the Earth (such as artificial satellites and the Moon), or when calculating what the sky will look like when viewed from Earth (as opposed to an imaginary observer looking down on the entire solar system, where a different coordinate system might be more convenient). The Ptolemaic model of the solar system held sway into the early modern age;
Central Kwara'ae constituency Central Kwara'ae constituency Central Kwara'ae is a parliamentary constituency electing one representative to the National Parliament of Solomon Islands. It had a registered electorate of 8,977 in 2006, and 9,955 in 2010. It is one of fourteen constituencies in Malaita Province. The constituency was established for the Fifth Parliament in 1993, and its first MP was Alfred Maetia. Fred Fono won the seat in 1997, and was twice re-elected, ultimately becoming deputy Prime Minister in 2007. He stood for a fourth term in 2010, but was unseated by political newcomer and independent candidate Jackson Fiulaua, in what was described as