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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 · Stars: names, positions, distance and colour

starDistanceLightYearsfunction

A star's distance from its parallax, in light-years.

Import it

import { starDistanceLightYears } from "@johnmorrisdotca/hoshi-stars";

Definition

function starDistanceLightYears(star: Star): number | undefined

Parameters

NameTypeDescription
starStar

A star.

Returns

number | undefined

Light-years, or undefined where the catalogue has no parallax (or a non-positive one).

Examples

import { starByName, starDistanceLightYears } from "@johnmorrisdotca/hoshi-stars";

console.log(starDistanceLightYears(starByName("Sirius")!)?.toFixed(1));
8.7

What it prints (run when this page was built)

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