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Wakusei Planets惑星

The Sun, the planets and their moons as a clean line drawing, a shaded realistic drawing or a painted surface map, with real sizes, tilt and rotation, and the moons where they are at any date and time.

Wakusei is the Japanese word 惑星 for a planet. About the name

Contents

Reference · The Sun and Moon from a place: position, sunrise and sunset, Moon rise, set and phase, with suncalc 2's names and a better engine

getPositionfunction

The Sun's place in the sky from a place on the Earth.

Import it

import { getPosition } from "@johnmorrisdotca/wakusei-planets/suncalc";

Definition

function getPosition(date: Date | number, lat: number, lng: number): Position

Parameters

NameTypeDescription
datenumber | Date

The moment, as a Date (or milliseconds since 1970).

latnumber

Degrees north, -90 to 90.

lngnumber

Degrees east (west negative).

Returns

Position

The azimuth (degrees clockwise from north) and the apparent altitude (degrees).

Examples

import { getPosition } from "@johnmorrisdotca/wakusei-planets/suncalc";

const { azimuth, altitude } = getPosition(new Date(Date.UTC(2026, 5, 21, 12)), 51.5, -0.1);
console.log(azimuth.toFixed(0), altitude.toFixed(0));
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What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/wakusei-planets 0.24.0.