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;
Places in Virginia with names involving "Dale" from Glen Dale Farm, which as so named by Hannah Jane Cockayne, née Alexander. It is known she was 20 or 21 at the time of West Virginia's secession, and that she married the owner in 1863, so even "Glen Dale Farm, Virginia" may be an anachronistic term. It is clear that what is now the city of Glen Dale was "never" a city while its location lay in Virginia. The remaining Dale/-dale-named West Virginia places are: Places in Virginia with names involving "Dale" The term or name Dale appears in a number of place names in the American state