Bug in : STELLA1/STELLA1Runtime/POUs/FunctionBlocks/FB_HOR2EQ .TcPOU https://github.com/weingrill/STELLA1/blob/69c8930464af1386aa3b5d6499fc3226a37d6d27/STELLA1/STELLA1Runtime/POUs/FunctionBlocks/FB_HOR2EQ.TcPOU#L142 EQUINOX1 and EQUINOX2 have to be switched. `EQUINOX1 := J_now, EQUINOX2 := 2000.0, ` accuracy increases by 0.5 to 10 degrees.