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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 host stars of confirmed exoplanets worth a visit: place, distance, and each planet's name and orbital period

Exoplanettype

One confirmed planet, as the NASA Exoplanet Archive gives it.

Import it

import type { Exoplanet } from "@johnmorrisdotca/hoshi-stars/exoplanet-hosts";

Definition

interface Exoplanet {
    name: string;
    letter: string;
    periodDays: number | undefined;
    periodReference: string | undefined;
    discoveryYear: number | undefined;
    discoveryMethod: string;
}

Members

NameTypeDescription
namestring

The planet's name (Proxima Cen b).

letterstring

The letter after the star's name (b).

periodDaysnumber | undefined

The orbital period in days, or undefined where none is published (a planet found by direct imaging may have none).

periodReferencestring | undefined

The paper the period is from (Faria et al. 2022), or undefined.

discoveryYearnumber | undefined

The year of discovery, or undefined.

discoveryMethodstring

How it was found, in the Archive's words (Radial Velocity, Transit, Imaging).

Examples

import { exoplanetHostByName, type Exoplanet } from "@johnmorrisdotca/hoshi-stars/exoplanet-hosts";

const b: Exoplanet = exoplanetHostByName("Proxima Centauri")!.planets[0]!;
console.log(b.name, b.periodDays, b.discoveryYear);
Proxima Cen b 11.18465 2016

What it prints (run when this page was built)

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