API Reference / MilkyWay · interface
Interface: MilkyWay
The Milky Way band's appearance in the frame. Visible only in a dark sky (astronomical twilight or night) without a bright Moon or heavy light pollution. The band is the galactic equator; its bright bulge is the galactic center in Sagittarius.
Properties
| Property | Type | Description |
|---|---|---|
<a id="entry"></a> entry | | { x: number; y: number; } | null | Pixel where the band enters the frame, and where it exits. |
<a id="exit"></a> exit | | { x: number; y: number; } | null | - |
<a id="galacticcenter"></a> galacticCenter | | { altitudeDeg: number; inFrame: boolean; side: string; x: number; y: number; } | null | The galactic center (Sagittarius), the brightest part, when above the horizon: its pixel, whether it is in frame, its altitude, and which way it lies relative to the frame. |
<a id="inframe"></a> inFrame | boolean | The band crosses the frame (implies visible). |
<a id="note"></a> note | string | Plain-language state, e.g. "crosses the frame, bright center in view" or "washed out by a bright Moon". |
<a id="visible"></a> visible | boolean | Dark enough to see, and at least partly above the horizon. |