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@behaver/fk5-deflection

v1.0.3

Published

This package is used to calculate fk5 deflection.

Readme

FK5Deflection

GitHub license npm version PRs Welcome

简介

FK5Deflection 是一个用于计算 VSOP 动力学坐标与 FK5 坐标之间的偏差的组件

安装

通过 npm 安装,在你的 node 项目目录下执行:

npm i --save @behaver/fk5-deflection

安装完成后,调用即可:

const FK5Deflection = require('@behaver/fk5-deflection');

用例

const FK5Deflection = require('@behaver/fk5-deflection');
const { JDateRepository } = require("@behaver/jdate");
const { SphericalCoordinate3D } = require('@behaver/coordinate');

let FK5D = new FK5Deflection({
  time: new JDateRepository(18, 'j2000'),
  sc: new SphericalCoordinate3D(230043, 1.123, 1.55),
});

let res = FK5D.get();

API

constructor(options)

构造函数:

  • options.time 计算时间
  • options.sc 天体球坐标 (距离单位:AU)
  • options.system 坐标系统

get()

获取 FK5 修正值对象

get time()

获取计算时间

set time(time)

设置计算时间

许可证书

The MIT license.