Skip to the content

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 same, with suncalc 1's conventions (radians, azimuth from south)

getPositionfunction

The Sun's place in the sky, as suncalc 1 gave it: the altitude has no refraction in it.

Import it

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

Definition

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

Parameters

NameTypeDescription
datenumber | Date

The moment.

latnumber

Degrees north.

lngnumber

Degrees east.

Returns

LegacyPosition

The azimuth in radians from south toward west and the altitude in radians.

Examples

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

const { altitude } = getPosition(new Date(Date.UTC(2026, 5, 21, 12)), 51.5, -0.1);
console.log((altitude * 180 / Math.PI).toFixed(0));
62

What it prints (run when this page was built)

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