A celestial phenomenon is a astrological event that involves one or more objects. The earliest example depicted was discovered in Germany in 1999. The Nebra Sky Disc dates back to 2000 BC and it depicted a star cluster, phases of the moon and the rising … 展开

The Chinese astronomers kept detailed observations beginning about 600 BC, for the primary purpose of timekeeping. Their records allowed them to predict eclipses, and include the first record … 展开