A filling crooked moon comes out high in the east at sundown. It is closely, but not almost, a full moon . . . Coming out to a greater extent than one-half illumined but to a lesser extent than the full. This moon stage occurs between one and two weeks afterwards the new moon.
The moon has displaced its area so that it is at present comparatively far from the sun in our sky. A filling crooked moon ascends on the hours between midday and sundown. It adjusts in the teeny hours after midnight. We sometimes discover a filling crooked moon in the afternoon, not far after the moon appears, as it is coming up in the east as the sun is falling in the west. It is comfortable to see a filling crooked moon in the day since, at this stage of the moon, a big divide of the moon’s day side is presenting in our way. So a filling crooked moon is more detectable in the sky than a semi lunar moon, with only a thin divide of the lunar day side obvious. Besides, a filling crooked moon is far from the sun on the sky’s vault, so the sun’s blaze is not covering it from sight.
The word “crooked” comes from a base that means “crookback.” You can buzz crookback shape of the filling crooked moon.