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45 lines
759 B
Markdown
45 lines
759 B
Markdown
[**pray-calc v2.1.1**](../README.md)
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***
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[pray-calc](../README.md) / getAsr
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# Function: getAsr()
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> **getAsr**(`solarNoon`, `latitude`, `declination`, `hanafi?`): `number`
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Defined in: [getAsr.ts:21](https://github.com/acamarata/pray-calc/blob/4227afc2c3993234794b3a1a561c080edc6d4d4e/src/getAsr.ts#L21)
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Compute Asr time as fractional hours.
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## Parameters
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### solarNoon
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`number`
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Solar noon in fractional hours (from getSpa)
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### latitude
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`number`
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Observer latitude in degrees
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### declination
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`number`
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Solar declination in degrees (from solarEphemeris)
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### hanafi?
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`boolean` = `false`
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true for Hanafi (shadow factor 2), false for Shafi'i (factor 1)
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## Returns
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`number`
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Fractional hours, or NaN if the sun never reaches the required altitude
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