47 lines
1.5 KiB
Java
47 lines
1.5 KiB
Java
/*
|
|
* Copyright 2008-2009 Mike Reedell / LuckyCatLabs.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package com.luckycatlabs.sunrisesunset;
|
|
|
|
import java.math.BigDecimal;
|
|
|
|
/**
|
|
* Defines the solar declination used in computing the sunrise/sunset.
|
|
*/
|
|
public class Zenith {
|
|
/** Astronomical sunrise/set is when the sun is 18 degrees below the horizon. */
|
|
public static final Zenith ASTRONOMICAL = new Zenith(108);
|
|
|
|
/** Nautical sunrise/set is when the sun is 12 degrees below the horizon. */
|
|
public static final Zenith NAUTICAL = new Zenith(102);
|
|
|
|
/** Civil sunrise/set (dawn/dusk) is when the sun is 6 degrees below the horizon. */
|
|
public static final Zenith CIVIL = new Zenith(96);
|
|
|
|
/** Official sunrise/set is when the sun is 50' below the horizon. */
|
|
public static final Zenith OFFICIAL = new Zenith(90.8333);
|
|
|
|
private final BigDecimal degrees;
|
|
|
|
public Zenith(double degrees) {
|
|
this.degrees = BigDecimal.valueOf(degrees);
|
|
}
|
|
|
|
public BigDecimal degrees() {
|
|
return degrees;
|
|
}
|
|
}
|