Rate this app:

More details

Add your questions or answers

Q: How to get the best score?

Q: What is your favourite trick in this game/app?

Q: What is your strategy?

Lunar Eclipses Gameplay, Trailers and Related Videos

Watch Lunar Eclipse 101 | National Geographic video.

Watch Lunar Eclispe video.

Watch Weird Science: Learn about Solar and Lunar Eclipses video.

Watch Why The Moon Turns Red During A Total Lunar Eclipse video.

Watch Total Lunar Eclipse video.

Watch What Is A Lunar Eclipse? video.

Watch Lunar Eclipse: Science behind the blood moon - BBC News video.

Watch What's the difference between a solar and lunar eclipse? video.

Watch Total Lunar Eclipse & Mars at Opposition 2018 video.

Watch Lunar Eclipses video.

About the application:

Local circumstances at greatest eclipse for every happening during the century are presented in the following apk. The calendar date and Universal Time of the instant of greatest eclipse are found in the first line. The eclipse kind is given (T=Total, P=Partial, or N=Penumbral) along with the Saros series. Gamma is the distance of the Moon's center from the shadow axis of Earth at greatest eclipse (in Earth radii). The penumbral and umbral magnitudes of the eclipse are defined as the fractions of the Moon's diameter obscured by each shadow at greatest eclipse. The semi-durations of the partial and total phases of the eclipse are given to the nearest min. Finally, the Greenwich Sidereal Time at 00:00 U.T., along with the Moon's Geocentric Right Ascension and Declination at greatest eclipse complete each record. For any eclipse in the apk, the begin and end times of the partial eclipse phases can be calculated by respectively subtracting and adding the semi-duration of the partial phase (S.D. Par) to the instant of greatest eclipse. Similarly, the begin and end times of the total eclipse can be calculated by either subtracting or adding the semi-duration of the total phase (S.D. Tot) to the instant of greatest eclipse. To determine whether an eclipse is visible from a specific geographic place, it is simply a matter of calculating the Moon's altitude and azimuth during each phase of the eclipse. The calculations can be performed on any pocket calculator having trigonometric functions (SIN, COS, TAN). Armed with the latitude and longitude of the place, the lunar eclipse catalog provides all the extra info required to create the calculations.