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Hoshi Stars星

肉眼で見える星の名前・色・距離、88星座の線と境界、メシエ天体、そしてそれらを描くための7種類の図法を使えます。

「星」(ほし) は、夜空に光って見えるものです。 名前について(英語)

目次

リファレンス

星のプロファイル (温度・大きさ・光度・円盤の大きさを不確かさつきで、周縁減光、アルタイル・レグルス・ベガの測定された形)

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

最小化と gzip 圧縮をしたサイズは 17.1 kB(読み込むものをすべて含み、esbuild で計測)

リファレンスの説明と例は英語です。見出しと目次は日本語です。

エクスポート

名前種類概要
Estimate型A number with its uncertainty: the value, one standard error of it, and the range that error spans.
ProfileInput型What starProfile reads of a star: a Star has all of it, and so does anything built by hand (the Sun).
RadiusBasis型Where the radius comes from: "parallax" is worked out for this star from its distance, brightness and temperature; "type" is the typical radius of stars of its spectral type, used when the star's own distance is missing or too uncertain to beat it.
starProfile関数A star's profile: how hot, how big, how bright, and how dark its edge.
StarProfile型What the catalogue and the published tables say about one star's body.
starRotation関数The Bright Star Catalogue's projected rotation speed (v sin i) of a star, if it gives one.
StarRotation型How fast a star spins, as the Bright Star Catalogue gives it: the projected speed of its equator, v sin i.
starShape関数The published shape measurement of a star, if it has one: Altair (HR 7557) and Regulus (HR 3982) are flattened by their spin, Vega (HR 7001) is seen nearly pole-on.
StarShape型The shape of a star that was measured and is not a ball: Altair and Regulus are flattened by their spin, and Vega is seen from over its pole.
TemperatureBasis型How the temperature was found: "spectral type" from a published temperature scale for the star's type and luminosity class, or "colour" from its B-V colour index (a rougher guide, and the only one for a star whose type is odd or whose class is not stated).
Unknown型Why a figure in a profile could not be worked out, so a page can say it plainly: "no-colour-or-type" the catalogue gives no colour and no usable type, "no-parallax" no parallax, "poor-parallax" a parallax whose error is half of it or more, "implausible-parallax" a parallax that gives a size no star of that kind has, "no-typical-radius" no typical size is published for the type, "no-class" no luminosity class, "odd-type" a type the scales do not cover (carbon, S, Wolf-Rayet, white dwarf).

ソースを見るGitHub で編集@johnmorrisdotca/hoshi-stars 0.47.0 のソースから作成しました。

この日本語は、まだ日本語を母語とする方の確認を受けていません。訂正を歓迎します。