func ExampleAphelion() {
// Example 38.b, p. 270
j := pa.Aphelion(pa.Mars, 2032.5)
fmt.Printf("%.3f\n", j)
y, m, df := julian.JDToCalendar(j)
d, f := math.Modf(df)
fmt.Printf("%d %s %d at %dʰ\n", y, time.Month(m), int(d), int(f*24+.5))
// Output:
// 2463530.456
// 2032 October 24 at 23ʰ
}
func TestJS(t *testing.T) {
// p. 270
j := pa.Aphelion(pa.Jupiter, 1981.5)
y, m, d := julian.JDToCalendar(j)
if y != 1981 || m != 7 || int(d) != 19 {
t.Fatal(y, m, d)
}
s := pa.Perihelion(pa.Saturn, 1944.5)
y, m, d = julian.JDToCalendar(s)
if y != 1944 || m != 7 || int(d) != 30 {
t.Fatal(y, m, d)
}
}