28 lines
1.1 KiB
Go
28 lines
1.1 KiB
Go
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package sun
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import (
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"time"
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"b612.me/astro/basic"
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)
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// ApparentAltitude 太阳视高度角 / apparent solar altitude.
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func ApparentAltitude(date time.Time, lon, lat, pressureHPa, temperatureC float64) float64 {
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return basic.ApparentAltitude(Altitude(date, lon, lat), pressureHPa, temperatureC)
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}
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// ApparentZenith 太阳视天顶距 / apparent solar zenith distance.
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func ApparentZenith(date time.Time, lon, lat, pressureHPa, temperatureC float64) float64 {
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return 90 - ApparentAltitude(date, lon, lat, pressureHPa, temperatureC)
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}
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// ApparentAltitudeN 太阳视高度角（截断版） / truncated apparent solar altitude.
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func ApparentAltitudeN(date time.Time, lon, lat, pressureHPa, temperatureC float64, n int) float64 {
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return basic.ApparentAltitude(AltitudeN(date, lon, lat, n), pressureHPa, temperatureC)
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}
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// ApparentZenithN 太阳视天顶距（截断版） / truncated apparent solar zenith distance.
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func ApparentZenithN(date time.Time, lon, lat, pressureHPa, temperatureC float64, n int) float64 {
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return 90 - ApparentAltitudeN(date, lon, lat, pressureHPa, temperatureC, n)
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}
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