@Test
public void testAltitudeOfCelestialBody() {

  final double φ = 38 + (55 / 60.0) + (17.0 / 3600);
  final double δ = -6 - (43 / 60.0) - (11.61 / 3600);
  final double H = 64.352133;
  final double h = Astronomical.altitudeOfCelestialBody(
      /* observerLatitude */ φ, /* declination */ δ, /* localHourAngle */ H);
  assertThat(h).isWithin(0.0001).of(15.1249);
}