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Hoshi Stars星

The stars you can see without a telescope, with names, colours and distances; the 88 constellations with their lines and boundaries; the Messier objects; and seven map projections to draw them on.

Hoshi is the Japanese word 星 for a star. About the name

Contents

Reference · The Milky Way: a brightness map and soft bands to draw

MilkyWayStriptype

A ribbon of the Milky Way at one brightness level: two chains of sky points of the same length, the upper edge and the lower, each pair at the same galactic longitude. Draw the ribbon as the polygon upper forward then lower backward. A strip stops where the band splits or ends (a dust lane, the end of a bright patch), so one level is several strips.

Import it

import type { MilkyWayStrip } from "@johnmorrisdotca/hoshi-stars/milky-way";

Definition

interface MilkyWayStrip {
    upper: SkyPoint[];
    lower: SkyPoint[];
}

Members

NameTypeDescription
upperSkyPoint[]

The edge toward the galactic north, from low longitude to high.

lowerSkyPoint[]

The edge toward the galactic south, at the same longitudes as upper.

Examples

import { milkyWayBands, type MilkyWayStrip } from "@johnmorrisdotca/hoshi-stars/milky-way";

const strip: MilkyWayStrip = milkyWayBands()[0]!.strips[0]!;
console.log(strip.upper.length === strip.lower.length);
true

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/hoshi-stars 0.7.0.