Sunrise and Sunset Calculations
Determine the times, azimuths, and altitudes of sunrise, solar noon, and sunset at the observation point.
Please specify longitude (West) and latitude (South) as negative values.
| Sunrise | Azimuth degrees |
| Meridian transit | Altitude degrees |
| Sunset | Azimuth degrees |
Azimuths are measured in degrees: North: 0, East: 90, South: 180, West: 270.
This calculation assumes a flat horizon and does not account for specific terrain features.
Calculation results may contain an error of a few seconds, which increases at higher latitudes.
References)
Calculations for Sunrise and Sunset by Kō Nagasawa (Author), Chijinshokan
This calculation assumes a flat horizon and does not account for specific terrain features.
Calculation results may contain an error of a few seconds, which increases at higher latitudes.
References)
Calculations for Sunrise and Sunset by Kō Nagasawa (Author), Chijinshokan
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