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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 · Passes: when a satellite crosses the sky over a place

PassWindowtype

The span of time to look in: a pass is listed when its highest point is in it.

Import it

import type { PassWindow } from "@johnmorrisdotca/chikyu-earth/passes";

Definition

interface PassWindow {
    from: number;
    to: number;
}

Members

NameTypeDescription
fromnumber

The start, milliseconds since the Unix epoch.

tonumber

The end, milliseconds since the Unix epoch.

Examples

import type { PassWindow } from "@johnmorrisdotca/chikyu-earth/passes";

const week: PassWindow = { from: Date.UTC(2026, 10, 9), to: Date.UTC(2026, 10, 16) };
console.log(week.to - week.from);
604800000

What it prints (run when this page was built)

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