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)

`StarShape`型

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。

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. Every number is a published measurement, named in source.

インポート

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

定義

interface StarShape {
    kind: "oblate" | "pole-on";
    equatorialRadius: number;
    polarRadius: number;
    polarTemperatureK: number;
    equatorialTemperatureK: number;
    inclinationDegrees: number;
    positionAngleDegrees: number;
    rotationPeriodDays: number | undefined;
    source: string;
}

メンバー

名前	型	説明
`kind`	`"oblate" \| "pole-on"`	`"oblate"`: flattened by its spin and seen well off the pole; `"pole-on"`: spinning fast and seen almost along its axis, so it looks round.
`equatorialRadius`	`number`	The equatorial radius in solar radii.
`polarRadius`	`number`	The polar radius in solar radii.
`polarTemperatureK`	`number`	The temperature at the poles in kelvin (the poles are hotter: gravity darkening).
`equatorialTemperatureK`	`number`	The temperature at the equator in kelvin.
`inclinationDegrees`	`number`	The angle between the spin axis and the line of sight, in degrees: 0 is pole-on, 90 edge-on.
`positionAngleDegrees`	`number`	The direction of the spin axis on the sky, in degrees from north through east.
`rotationPeriodDays`	`number \| undefined`	The spin period in days where the source gives one.
`source`	`string`	The published measurement the numbers are from.

例

import { starShape, type StarShape } from "@johnmorrisdotca/hoshi-stars/profile";

const altair: StarShape | undefined = starShape(7557);
console.log(altair?.equatorialRadius, altair?.polarRadius, altair?.source);

2.029 1.634 Monnier et al. 2007, Science 317, 342 (CHARA)

出力（このページを作ったときに実行した結果）

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。

StarShape型

定義

メンバー

例

`StarShape`型