Simulasi Falak

What is the difference between sidereal and solar days?
do you know about the barycenter point in astronomy?
why the period of one month does not always have eclipses?

this application is a simulation of several things in astronomy include:
- Asensio Rekta - Declination (Right Ascension - Declination)
- BaryCenter
- Moon Inclination
- Sidereal and Solar Day
- The latitude and longitude of the earth