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| -rw-r--r-- | info/blueshift.texinfo | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/info/blueshift.texinfo b/info/blueshift.texinfo index 1b9a344..b61d28e 100644 --- a/info/blueshift.texinfo +++ b/info/blueshift.texinfo @@ -900,6 +900,43 @@ time in Julian Centuries. All parameters are floating point and may not be @code{None}, except for in @code{solar_elevation}, as specified. +Blueshift provides constants with important elevations of +the Sun during twilight. + +@table @code +@item SOLAR_ELEVATION_SUNSET_SUNRISE +The Sun's elevation at sunset and sunrise, +measured in degrees. + +@item SOLAR_ELEVATION_CIVIL_DUSK_DAWN +The Sun's elevation at civil dusk and civil dawn, +measured in degrees. + +@item SOLAR_ELEVATION_NAUTICAL_DUSK_DAWN +The Sun's elevation at nautical dusk and nautical +dawn, measured in degrees. + +@item SOLAR_ELEVATION_ASTRONOMICAL_DUSK_DAWN +The Sun's elevation at astronomical dusk and +astronomical dawn, measured in degrees. + +@item SOLAR_ELEVATION_RANGE_TWILIGHT +The Sun's lowest and highest elevation during all +periods of twilight, measured in degrees. + +@item SOLAR_ELEVATION_RANGE_CIVIL_TWILIGHT +The Sun's lowest and highest elevation during +civil twilight, measured in degrees. + +@item SOLAR_ELEVATION_RANGE_NAUTICAL_TWILIGHT +The Sun's lowest and highest elevation during +nautical twilight, measured in degrees. + +@item SOLAR_ELEVATION_RANGE_ASTRONOMICAL_TWILIGHT +The Sun's lowest and highest elevation during +astronomical twilight, measured in degrees. +@end table + @node Terminology |