Extraterrestrial

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MeteorShower-rocks

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Astronomical Coordinates

This article is requiring no knowledge on Astronomy. It introduces, however, one of the most complicated concepts in astronomy: Astronomical Coordinates. It's then followed by some Glossary for terms including the words in original Arabic from which the English terms stemed and then a final 'test' piece in archaic Arabic by Ibn Khaldoun.
Now, many of those starting to learn Astronomy have a problem understading the difference between Equatorial Coordinates (Right-Ascention and Declination angles) and Horizontal Coordinates (Azimuth and Altitude angles). Here is some help.
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