Inner Sky Electrum Synoptical Astrology Software for Windows 7  is a powerful piece of software with capabilities not found in any other astrology program. I will display by means of some famous historical eclipses to demonstrate how 
    powerful is this tool.I have attached the chartweel of the famous phenomenon from April 20, 899 B.C.,  called China's 'Double-Dawn' eclipse. It was an annular solar eclipse that occurred immediately after the sunrise and it was 
    visible from the eastern region of China.