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114 lines
2.8 KiB
Markdown
114 lines
2.8 KiB
Markdown
[**moon-sighting v1.1.1**](../README.md)
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***
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[moon-sighting](../README.md) / MoonVisibilityEstimate
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# Interface: MoonVisibilityEstimate
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Defined in: [types.ts:246](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L246)
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Kernel-free Odeh-based crescent visibility estimate from getMoonVisibilityEstimate().
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Computed via Meeus Ch. 47 approximation at the given observation time.
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For DE442S-quality results, use getMoonSightingReport().
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## Properties
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### ARCL
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> **ARCL**: `number`
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Defined in: [types.ts:261](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L261)
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Arc of light (Sun-Moon elongation) in degrees
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***
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### ARCV
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> **ARCV**: `number`
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Defined in: [types.ts:263](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L263)
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Arc of vision (Moon airless altitude minus Sun airless altitude) in degrees
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***
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### description
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> **description**: `string`
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Defined in: [types.ts:255](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L255)
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Human-readable zone description
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***
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### isApproximate
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> **isApproximate**: `true`
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Defined in: [types.ts:269](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L269)
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Always true: computed via Meeus approximation, not DE442S
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***
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### isVisibleNakedEye
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> **isVisibleNakedEye**: `boolean`
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Defined in: [types.ts:257](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L257)
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True for zone A
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***
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### isVisibleWithOpticalAid
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> **isVisibleWithOpticalAid**: `boolean`
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Defined in: [types.ts:259](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L259)
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True for zones A and B
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***
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### moonAboveHorizon
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> **moonAboveHorizon**: `boolean`
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Defined in: [types.ts:267](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L267)
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True when Moon is above the horizon at the given time
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***
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### V
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> **V**: `number`
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Defined in: [types.ts:251](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L251)
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Odeh V parameter: V = ARCV − f(W).
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Positive = crescent exceeds minimum visibility threshold.
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***
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### W
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> **W**: `number`
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Defined in: [types.ts:265](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L265)
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Topocentric crescent width in arc minutes
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***
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### zone
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> **zone**: [`OdehZone`](../type-aliases/OdehZone.md)
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Defined in: [types.ts:253](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L253)
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Visibility zone A through D
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