org.soulspace.astronomy.nutation — org.soulspace.clj/astronomy.core 0.4.3

argument-of-latitude-moon clj/s

(argument-of-latitude-moon t)

Calculates the argument of latitude for the moon in degrees at the given instant 't' in julian centuries.

longitude-ascending-node-moon clj/s

(longitude-ascending-node-moon t)

Calculates the longitude of ascending node of the moons mean orbit on the ecliptic in degrees at the given instant 't' in julian centuries, measured from the mean equinox of the date.

mean-anomaly-moon clj/s

(mean-anomaly-moon t)

Calculates the mean anomaly of the moon in degrees at the given instant 't' in julian centuries.

mean-anomaly-sun clj/s

(mean-anomaly-sun t)

Calculates the mean anomaly of the sun in degrees at the given instant 't' in julian centuries.

mean-elongation-moon-from-sun clj/s

(mean-elongation-moon-from-sun t)

Calculates the mean elongation of the moon from the sun in degrees at the given instant 't' in julian centuries.

mean-longitude-moon clj/s

(mean-longitude-moon t)

Calculates the mean longitude of the moon in degrees at the given 't' instant in julian centuries.

mean-longitude-sun clj/s

(mean-longitude-sun t)

Calculates the mean longitude of the sun in degrees at the given instant 't' in julian centuries.

mean-obliquity clj/s

(mean-obliquity jde)

Calculates the mean obliquity of the ecliptic (the inclination of the earth's axis) for the julian ephemerides day. The error is about 1 arc second over a period of 2000 years and 10 arc seconds over a period of 4000 years.

mean-obliquity-high-accuracy clj/s

(mean-obliquity-high-accuracy jde)

Calculates the mean obliquity of the ecliptic (the inclination of the earth's axis) for the julian ephemerides day with high accuracy. The error is about 0.01 arc second over a period of 2000 years and a few arc seconds over a period of 20000 years.

nutation-in-longitude clj/s

(nutation-in-longitude jde)

Calculates the nutation in longitude (delta psi) in arc seconds for the julian ephemerides day with an accuracy of 0.5 arc seconds.

nutation-in-obliquity clj/s

(nutation-in-obliquity jde)

Calculates the nutation in obliquity (delta epsilon) in arc seconds for the julian ephemerides day with an accuracy of 0.1 arc seconds.

obliquity_B1950 clj/s

obliquity_J2000 clj/s

true-obliquity clj/s

(true-obliquity jde)

Calculates the true obliquity of the ecliptic (the inclination of the earth's axis) for the julian ephemerides day. The error is about 1 arc second over a period of 2000 years and 10 arc seconds over a period of 4000 years.