リファレンス · ブラックホール (位置・質量と距離(範囲つき)・見つけた方法・出典の論文つきの301個)

`BlackHole`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。

One black hole. Positions are J2000 (equator and equinox of 2000), the same frame as Star and DeepSkyObject.

インポート

import type { BlackHole } from "@johnmorrisdotca/hoshi-stars/black-holes";

定義

interface BlackHole {
    id: string;
    name: string;
    otherNames: string[];
    kind: BlackHoleKind;
    status: "confirmed" | "candidate";
    constellation: string;
    rightAscension: number;
    declination: number;
    massSuns: BlackHoleMeasure | undefined;
    distanceParsecs: BlackHoleMeasure | undefined;
    companion: string | undefined;
    companionType: string | undefined;
    foundBy: BlackHoleFound;
    year: number | undefined;
    sources: BlackHoleSources;
    note: string | undefined;
}

メンバー

名前	型	説明
`id`	`string`	A short unique id made of lower-case letters, digits and hyphens (`cygnus-x-1`, `m87`).
`name`	`string`	The name: the object's usual name (`Cygnus X-1`), or for a supermassive black hole its galaxy's name with a star after it (`M87`, `NGC 4258`), as astronomers write Sagittarius A*.
`otherNames`	`string[]`	Other names that `blackHole` finds too (`Cyg X-1`, `HDE 226868`; for `M87*`, `M87` and `NGC 4486`). Usually a few, sometimes none.
`kind`	`"stellar" \| "quiet" \| "supermassive"`	The kind: `stellar`, `quiet` or `supermassive`.
`status`	`"confirmed" \| "candidate"`	`confirmed` where the mass of the invisible object is measured above what a neutron star can have, from its pull on a companion, on stars, gas or masers around it, or from an image; else `candidate`: a source that acts like a black hole.
`constellation`	`string`	The IAU three-letter constellation abbreviation (`Cyg`), the same text as `Star.constellation`.
`rightAscension`	`number`	Right ascension in degrees at J2000, 0 up to 360. Given to 0.0001 degree (0.36 arc-second).
`declination`	`number`	Declination in degrees at J2000, -90 to 90. Given to 0.0001 degree.
`massSuns`	`BlackHoleMeasure \| undefined`	The mass in Suns (solar masses) with its range, or `undefined` where there is no measure.
`distanceParsecs`	`BlackHoleMeasure \| undefined`	The distance in parsecs (1 parsec is 3.2616 light-years) with its range, or `undefined`.
`companion`	`string \| undefined`	The companion star's designation (`HDE 226868`, `V404 Cyg`), or `undefined` where it has none or the black hole has no companion.
`companionType`	`string \| undefined`	The companion star's spectral type or kind (`O supergiant`, `K3 III`, `red giant`), or `undefined`.
`foundBy`	`"image" \| "x-rays" \| "orbit" \| "microlensing" \| "stars" \| "gas" \| "masers" \| "echoes"`	How it was found.
`year`	`number \| undefined`	The year: for a stellar black hole when its X-ray source was discovered, for a quiet one the year of its discovery paper, for a supermassive one the year of the mass measurement used. `undefined` where unknown.
`sources`	`BlackHoleSources`	The papers behind each fact.
`note`	`string \| undefined`	A short English note where the facts need one (a disputed mass, an unusual place), else `undefined`.

例

import { blackHole, type BlackHole } from "@johnmorrisdotca/hoshi-stars/black-holes";

const cygnus: BlackHole = blackHole("Cygnus X-1")!;
console.log(cygnus.id, cygnus.kind, cygnus.massSuns?.value, cygnus.companion, cygnus.year);

cygnus-x-1 stellar 21.2 HDE 226868 1964

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。

BlackHole型

定義

メンバー

例

`BlackHole`型