'Compare Greenwich Apparent Sidereal Time with what was found earlier'

def test_gst(self):

    gst_compare = np.array([6.597116857049485, 18.629694220878296, 18.62997275921186, 18.63025129754539, 6.663107428401824])
    gst = self.t1.sidereal_time('apparent', 'greenwich')
    assert allclose_hours(gst.value, gst_compare)
