This is a Java library containing algorithms for finding the sun’s position on the sky for a given date and latitude and longitude (and other parameters).
'net.e175.klaus:solarpositioning:0.0.7'
<dependency>
<groupId>net.e175.klaus</groupId>
<artifactId>solarpositioning</artifactId>
<version>0.0.7</version>
</dependency>
<dependency org="net.e175.klaus" name="solarpositioning" rev="0.0.7"/>
"net.e175.klaus", "solarpositioning", "0.0.7"