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55 lines
1.5 KiB
Markdown
55 lines
1.5 KiB
Markdown
[**moon-sighting v1.1.1**](../README.md)
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***
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[moon-sighting](../README.md) / MoonPosition
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# Interface: MoonPosition
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Defined in: [types.ts:27](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L27)
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Topocentric moon position from getMoonPosition().
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Computed via Meeus Ch. 47 (no kernel required).
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Accuracy: azimuth/altitude ~0.3°, distance ~300 km.
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## Properties
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### altitude
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> **altitude**: `number`
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Defined in: [types.ts:31](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L31)
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Apparent altitude in degrees above the horizon (atmospheric refraction applied)
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***
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### azimuth
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> **azimuth**: `number`
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Defined in: [types.ts:29](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L29)
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Azimuth in degrees from North, measured clockwise (0 = N, 90 = E, 180 = S, 270 = W)
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***
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### distance
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> **distance**: `number`
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Defined in: [types.ts:33](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L33)
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Distance from Earth center to Moon center, km
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***
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### parallacticAngle
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> **parallacticAngle**: `number`
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Defined in: [types.ts:39](https://github.com/acamarata/moon-sighting/blob/2992dcee216cb24cc74542f6e8d5a6f4f0d16e05/src/types.ts#L39)
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Parallactic angle in radians.
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The angle between the great circle through the Moon and zenith, and the great circle
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through the Moon and the north celestial pole. Positive east of the meridian.
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