48:21 · The same sign combination as shown last in the entry above, but with the circles in filled, , , , denotes an eclipse of the moon in astronomy. This phenomenon means that the opposition of the sun and the moon (i.e. the full moon) is exact also in declination. Then the surface of the moon is totally in the shadow of the earth. Usually, when the moon is full, it moves either slightly above or below the earth's orbit around the sun and therefore is not shadowed by the earth. A occurs when that longitude in the ecliptic (see in Group 35) where the moon is in exact opposition to the sun, is also one of the moon's nodes, or .
    For more facts in this respect, look up the sign in Group 38.