get UTCSunrise
A method that calculates UTC sunrise as well as any time based on an angle above or below sunrise. This abstract method is implemented by the classes that extend this class.
Return
The UTC time of sunrise in 24 hour format. 5:45:00 AM will return 5.75.0. If an error was encountered in the calculation (expected behavior for some locations such as near the poles, Double.NaN will be returned.
Parameters
Used to calculate day of year.
The location information used for astronomical calculating sun times.
the azimuth below the vertical zenith of 90 degrees. for sunrise typically the .adjustZenith used for the calculation uses geometric zenith of 90 and .adjustZenith this slightly to account for solar refraction and the sun's radius. Another example would be com.kosherjava.zmanim.AstronomicalCalendar.getBeginNauticalTwilight that passes com.kosherjava.zmanim.AstronomicalCalendar.NAUTICAL_ZENITH to this method.
Should the time be adjusted for elevation
See also
.getElevationAdjustment