リファレンス · 暗い星 (UCAC4の約300万個、12等まで。見ている空の部分のタイルだけを読み込みます)
faintStarsIn関数
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 stars of some decoded tiles that lie in a round patch of sky and are as bright as a limit, brightest first. With max, the brightest max of them: the list is then complete only to depth, which is the magnitude the list is cut at.
インポート
import { faintStarsIn } from "@johnmorrisdotca/hoshi-stars/faint";定義
function faintStarsIn(tiles: Iterable<FaintTile>, field: FaintField, limit?: number, max?: number): { stars: FaintStar[]; depth: number; }引数
| 名前 | 型 | 説明 |
|---|---|---|
tiles | Iterable<FaintTile> | Decoded tiles, from |
field | FaintField | The patch. |
limit (省略可) | number | The faintest magnitude wanted; 12 where left out. |
max (省略可) | number | The most stars to return; all of them where left out. |
戻り値
{ stars: FaintStar[]; depth: number; }
The stars, and depth: the faintest magnitude the list holds all the stars of: limit when nothing was cut, else the magnitude of the cut (stars a step fainter are left out).
例
import { faintStarsIn, type FaintTile } from "@johnmorrisdotca/hoshi-stars/faint";
const tiles: FaintTile[] = []; // the tiles of faintTilesFor(field), fetched and decoded
const { stars, depth } = faintStarsIn(tiles, { rightAscension: 83.8, declination: -5.4, radius: 1 }, 11, 2000);
console.log(stars.length, depth);0 11出力（このページを作ったときに実行した結果）
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。