Simulation and countdown for annular solar eclipse at May 20, 2012 (May 21/JST). With iPhone 4 or 4S, AR(augmented reality) is available and useful to determine observation location.
Total and Total-annular solar eclipses processed by the program are comprised between 1900 and 2100, exactly 287 eclipses from 28th May 1900 to 4th September 2100 . The program gives the times...
This is a piece of astronomy software to professionally introduce the solar eclipse. It is divided into five modules: guidance, videos, images, methods, and future observations form, which...