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56 lines
1.5 KiB
Markdown
56 lines
1.5 KiB
Markdown
[**moon-sighting v1.1.1**](../README.md)
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***
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[moon-sighting](../README.md) / getMoonSightingReport
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# Function: getMoonSightingReport()
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> **getMoonSightingReport**(`date`, `observer`, `options?`): `Promise`\<[`MoonSightingReport`](../interfaces/MoonSightingReport.md)\>
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Defined in: [api/index.ts:306](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/api/index.ts#L306)
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Compute a complete moon sighting report for a date and location.
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Returns all quantities needed for Islamic crescent sighting determination:
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sunset/moonset times, best observation time, crescent geometry (ARCL, ARCV,
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DAZ, W, Lag), Yallop category, Odeh zone, and plain-language guidance.
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Requires initKernels() to have been called first (or pass kernels in options).
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## Parameters
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### date
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`Date`
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Date to check (UTC midnight or any time on that civil day)
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### observer
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[`Observer`](../interfaces/Observer.md)
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Observer location and environmental parameters
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### options?
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[`SightingOptions`](../interfaces/SightingOptions.md)
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Optional configuration for refraction model, best-time method, etc.
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## Returns
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`Promise`\<[`MoonSightingReport`](../interfaces/MoonSightingReport.md)\>
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Complete MoonSightingReport
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## Example
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```ts
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await initKernels()
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const report = await getMoonSightingReport(new Date('2025-03-01'), {
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lat: 51.5074, lon: -0.1278, elevation: 10, name: 'London'
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})
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console.log(report.yallop.category) // 'A' through 'F'
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console.log(report.guidance) // "Best time to look: ..."
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```
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