npm

turrim

data collecter

@behaver/angle

The entity of angle.

@behaver/jdate

About Julian day.

@behaver/coordinate

A toolkit about coordinate.

@behaver/calc-ut-delay

[](#) [](https://www.npmjs.com/package/@behaver/calc-ut-delay) [![PRs Welcome](https://img.shields.io/badge/PRs-wel

@behaver/precession

calculate precession.

@behaver/nutation

calculate nutation.

@behaver/sidereal-time

This package for calculating sidereal time.

@behaver/celestial-coordinate

The package for handling celestial coordinate.

@behaver/atmospheric-refraction

The pkg for calculating atmospheric refraction.

@behaver/diurnal-parallax

The package is for calculating diurnal parallax.

@behaver/solar-planets-hecc

This package is created for calcultating main planets of solar system heliocentric ecliptic coordinate.

@behaver/earth-ssb

The calcultor for earth ssb velocity and position.

@behaver/annual-aberration

The pkg is used to calculate annual aberration

@behaver/annual-parallax

A package for calculating annual parallax.

@behaver/gravitational-deflection

This package is used to calculate gravitational deflection

@behaver/fk5-deflection

This package is used to calculate fk5 deflection.

@behaver/elp2000-mooon-gecc

This pkg is a calculator for moon geocentric ecliptic coordinate by using ELP2000 theory.

@behaver/pluto99-hecc

This pkg is a calculator for J2000 heliocentric ecliptic coordinate of pluto on pluto99 theory.

@behaver/fixed-star-calculator

This package is builded for calculating the equinoctial coordinate of fixed stars.

@behaver/solar-star-coordinate

This pkg is builded for calculating solar stars celestial coordinate.

@behaver/fixed-star-coordinate

This pkg is builded for calculating the coordinate of fixed star.

@behaver/elp2000-moon-gecc

This pkg is a calculator for moon geocentric ecliptic coordinate by using ELP2000 theory.

@behaver/astrolable-house-calculator

This pkg is builded for astrolable house calculating.

@behaver/linear-solver

The pkg is builded for solving linear function.