moon-sighting/.github/wiki/api/interfaces/MoonVisibilityEstimate.md
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moon-sighting v1.1.1


moon-sighting / MoonVisibilityEstimate

Interface: MoonVisibilityEstimate

Defined in: types.ts:246

Kernel-free Odeh-based crescent visibility estimate from getMoonVisibilityEstimate(). Computed via Meeus Ch. 47 approximation at the given observation time. For DE442S-quality results, use getMoonSightingReport().

Properties

ARCL

ARCL: number

Defined in: types.ts:261

Arc of light (Sun-Moon elongation) in degrees


ARCV

ARCV: number

Defined in: types.ts:263

Arc of vision (Moon airless altitude minus Sun airless altitude) in degrees


description

description: string

Defined in: types.ts:255

Human-readable zone description


isApproximate

isApproximate: true

Defined in: types.ts:269

Always true: computed via Meeus approximation, not DE442S


isVisibleNakedEye

isVisibleNakedEye: boolean

Defined in: types.ts:257

True for zone A


isVisibleWithOpticalAid

isVisibleWithOpticalAid: boolean

Defined in: types.ts:259

True for zones A and B


moonAboveHorizon

moonAboveHorizon: boolean

Defined in: types.ts:267

True when Moon is above the horizon at the given time


V

V: number

Defined in: types.ts:251

Odeh V parameter: V = ARCV f(W). Positive = crescent exceeds minimum visibility threshold.


W

W: number

Defined in: types.ts:265

Topocentric crescent width in arc minutes


zone

zone: OdehZone

Defined in: types.ts:253

Visibility zone A through D