Sky Calendar is an astrology software. Natal, tranzit/forecast and synastry/relationship charts Calculations for the years 1 to 3000. Secondary directions and many kinds of revolution (solar, lunar, soli-lunar and revolutions of planets). Position of fixed stars, sensitive points, Vertex, Lilith (Black Moon), White Moon and up to 26 asteroids. Natal/radix horoscope readings (open astrological interpretation database for many kinds of interpretations, so you can fill your own texts).Women fertile days calculation (Lunar fertility cycle) - with help of an original method discovered by Slovak medical doctor Dr. Eugen Jonas.Constellation search. Sabian and Hinduistic (Sepharial) symbols interpetation of zodiacal degrees. Summer daylight savings database for most of European countries.