44 lines
1.9 KiB
Go
44 lines
1.9 KiB
Go
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package phenomena
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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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// AltitudeLimb 日月取高度的位置 / limb used for Sun and Moon altitude.
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type AltitudeLimb = basic.AltitudeLimb
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const (
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LimbUpper = basic.AltitudeLimbUpper
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LimbCenter = basic.AltitudeLimbCenter
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LimbLower = basic.AltitudeLimbLower
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)
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// AltitudeOptions 任意高度升落选项；零值为上缘、标准气象、计入折射 / altitude crossing options.
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type AltitudeOptions = basic.AltitudeCrossingOptions
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// AltitudeState 一个民用日内的穿越状态 / crossing state over one civil day.
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type AltitudeState = basic.AltitudeCrossingState
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const (
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AltitudeCrosses = basic.AltitudeCrosses
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AltitudeAlwaysAbove = basic.AltitudeAlwaysAbove
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AltitudeAlwaysBelow = basic.AltitudeAlwaysBelow
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AltitudeTangent = basic.AltitudeTangent
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)
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// AltitudeCrossingResult date 所在民用日内首次升、落（无则为零值，对应 HasRise/HasSet 为 false）与残差范围（度）/ first rise and set on the civil day.
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type AltitudeCrossingResult = basic.AltitudeCrossingResult
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// AltitudeCrossing 日、月或行星在 date 所在民用日内穿过视高度 altitude（度，相对天文地平）的时刻；height 只影响月球视差 /
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// Sun, Moon or planet crossings of an apparent altitude.
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func (module *Phenomena) AltitudeCrossing(body Body, date time.Time, lon, lat, height, altitude float64, options AltitudeOptions) (AltitudeCrossingResult, error) {
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return basic.SkyAltitudeCrossingOnDate(body, date, lon, lat, height, altitude, options, module.inst)
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}
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// StarAltitudeCrossing 恒星（视赤经、视赤纬，度）穿过视高度 altitude 的时刻 / star crossings of an apparent altitude.
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func StarAltitudeCrossing(date time.Time, ra, dec, lon, lat, altitude float64, options AltitudeOptions) (AltitudeCrossingResult, error) {
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return basic.StarAltitudeCrossingOnDate(date, ra, dec, lon, lat, altitude, options)
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}
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