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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 73 star systems within 20 light-years, with names in English and Japanese, place, distance, companions and the source of each value

NearStarSourcestype

Where each value of a system comes from.

Import it

import type { NearStarSources } from "@johnmorrisdotca/hoshi-stars/near-stars";

Definition

interface NearStarSources {
    position: NearStarSource;
    distance: NearStarDistanceSource;
    spectralType: NearStarSource | undefined;
    magnitude: NearStarSource | undefined;
    properMotion: NearStarSource | undefined;
}

Members

NameTypeDescription
positionNearStarSource

The right ascension and declination: "BSC", "2MASS" (a modern position) or "GCTP" (the Yale catalogue's own, carried to J2000).

distanceNearStarDistanceSource

The parallax and the distance.

spectralTypeNearStarSource | undefined

The spectral type, or undefined where there is none.

magnitudeNearStarSource | undefined

The V magnitude, or undefined where there is none.

properMotionNearStarSource | undefined

The proper motion, or undefined where there is none.

Examples

import { nearStarByName, type NearStarSources } from "@johnmorrisdotca/hoshi-stars/near-stars";

const sources: NearStarSources = nearStarByName("Barnard's Star")!.sources;
console.log(sources.position, sources.distance, sources.magnitude);
2MASS GCTP GCTP

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/hoshi-stars 0.47.0.