An Equatorium (plural Equatoria) was a medieval astrometic device used by astronomers. It was invented in Andalusia (see Al-Andalus) probably in the early 11th century. This article does not cite its references or sources. ... An astronomer or astrophysicist is a person whose area of interest is astronomy or astrophysics. ... Motto: Dominator Hercules Fundator AndalucÃa por sÃ, para España y la humanidad (Andalusia for herself, for Spain, and for humankind) Capital Seville Area â Total â % of Spain Ranked 2nd 87 268 km² 17,2% Population â Total (2005) â % of Spain â Density Ranked 1st 7. ... Al-Andalus is the Arabic name given the Iberian Peninsula by its Muslim conquerors; it refers to both the Caliphate proper and the general period of Muslim rule (711–1492). ... As a means of recording the passage of time, the 11th century was that century which lasted from 1001 to 1100. ...
It is a mechanical device for finding the positions of the Moon, Sun, and planets, without calculation using a geometrical model to represent the celestial body's mean and anomalistic position. Bulk composition of the moons mantle and crust estimated, weight percent Oxygen 42. ... The Sun is the star of our solar system. ... The eight planets and three dwarf planets of our solar system, alongside the Sun. ... See lists of astronomical objects for a list of the various lists of astronomical objects in Wikipedia. ...