# The Astrocalculator

The &kstars; Astrocalculator provides several modules that give you direct access to algorithms used by the program. The modules are organized by subject:

## Time Calculators

- Julian Day

- Sidereal Time

- Almanac

- Equinoxes and Solstices

## Coordinate Converters

- Equatorial/Galactic Coordinates

- Apparent Coordinates

- Horizontal Coordinates

- Ecliptic Coordinates

- Angular Distance

- Geodetic Coordinates

## Solar System

- Planets Coordinates

&calc-julian; &calc-sidereal; &calc-dayduration; &calc-equinox; &calc-eqgal; &calc-apcoords; &calc-horiz; &calc-ecliptic; &calc-angdist; &calc-geodetic; &calc-planetcoords;