リファレンス

NGC・IC天体の大きさと向き

import { … } from "@johnmorrisdotca/hoshi-stars/deep-sky/ngc-ic-shape";

最小化と gzip 圧縮をしたサイズは 53.4 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
`deepSkyOutline`	関数	The outline of an object on the sky: a closed ring of points (the first repeated as the last) round an ellipse of the shape's major and minor axes at its angle.
`deepSkyShape`	関数	The size, axis ratio and angle of a Messier, NGC or IC object on the sky.
`DeepSkyShape`	型	How big a deep-sky object is on the sky and which way it lies.
`DeepSkyShapeSource`	型	The place a size came from, as `deepSkyShape` names it: `RC3` (the Third Reference Catalogue of Bright Galaxies, for a galaxy's major axis, axis ratio and angle), `NED` (NASA/IPAC NED's diameters table, for a galaxy RC3 does not give), or `Catalogue row` (the one diameter that the object's own row in the deep-sky table carries: Wikidata's, and for a Messier object what the table held already).
`measuredParts`	関数	Which parts of an object's drawn shape are measured: the size, the axis ratio and the angle.
`offsetOnSky`	関数	The sky position `east` and `north` arc-minutes from a centre, on the tangent plane there (the gnomonic projection, the one that sky photographs and the standard picture header use).

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。