Skip to the content

Chikyu Earth地球

A line-drawn globe of the world's countries that turns at the Earth's own rate, with an optional realistic Earth from space and markers for any place.

Chikyu is the Japanese word 地球 for the Earth. About the name

Contents

Reference · /meteors

meteorSkyfunction

The meteor sky of a moment (see MeteorSky).

Import it

import { meteorSky } from "@johnmorrisdotca/chikyu-earth/meteors";

Definition

function meteorSky(ms: number): MeteorSky

Parameters

NameTypeDescription
msnumber

The moment, in milliseconds since the epoch.

Returns

MeteorSky

The active showers with their rates and radiant places, and the apex.

Examples

import { hourlyRateAt, meteorSky } from "@johnmorrisdotca/chikyu-earth/meteors";

const sky = meteorSky(Date.UTC(2026, 7, 13, 2));
console.log(hourlyRateAt(sky, { lon: 139.7, lat: 35.7 }).toFixed(1));
64.0

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/chikyu-earth 0.51.1.