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@behaver/celestial-coordinate

v1.9.1

Published

The package for handling celestial coordinate.

Downloads

47

Readme

CelestialCoordinate

简介

CelestialCoordinate 是一个基于 NodeJS 开发的天文学坐标计算工具,主要可被用于天体天球坐标的转换和处理。

其中包含的天球坐标组件分别有:

点击上述链接,可查看它们的详细文档。

安装

通过 npm 安装,在你的 node 项目目录下执行:

npm install @behaver/celestial-coordinate

安装完成后,调用即可:

const { CelestialCoordinate } = require('@behaver/celestial-coordinate');

用例

const { JDateRepository } = require('@behaver/jdate');
const { CelestialCoordinate } = require('@behaver/celestial-coordinate');

// 构建天球坐标实例
let CC = new CelestialCoordinate({
  withNutation: true,
  withAnnualAberration: true,
});

// 生成黄道坐标对象
let ECC = CC.create('ecc', {
  time: new JDateRepository(2446896),
  longitude: 125.88,
  latitude: 32.45,
});

// 转换至赤道坐标对象
let EQC = CC.transform(ECC).to('eqc');

// 输出赤道经度度数
console.log(EQC.longitude.getDegrees());

API

属性

options 天球坐标参数项对象

方法

constructor(options)

构造函数

create(sys, opts)

生成天球坐标对象:

  • sys 天球系统
  • opts 选项参数

transform(coord, options)

转换天球坐标:

  • coord 起始坐标对象
  • options 起始坐标参数选项

许可证书

The ISC license.