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These routines do astronomical or calendrical calculations.
To calculate the position and position-dependent characteristics of the Sun and the planets Mercury through Neptune.
To convert between various calendars.
To convert TAI seconds to a time string.
To calculate the date of Easter.
To read auxilliary orbital data.
To display auxilliary orbital data.
To calculate the solar B angle as seen from the Earth.
To calculate the Carrington longitude at the solar prime meridian as seen from the Earth.
To calculate the solar P angle as seen from the Earth.
To calculate the apparent angular solar radius as seen from the Earth.
To calculate the solar B angle as seen from the Earth.
To calculate the solar D angle as seen from the Earth.
To calculate the solar P angle as seen from the Earth.
To calculate the solar radius as seen from the Earth.
To transform a date to TAI seconds.
See also: calendar
| • Astronomical Coordinate Calculations: | ||
| • Astronomical Time Scales: |