Man in the Moon Mare Cognitum. This particular human face can also be seen in tropical regions on both sides of the equator. However, the Moon orientation associated with the face is observed less frequently—and eventually not at all—as one moves toward the South Pole. Conventionalized illustrations of the Man in the Moon seen in Western art often show a very simple face in the full moon, or a human profile in the crescent moon, corresponding to no actual markings. "The Man in the Moon" can also refer to a mythological character said to live on or in the Moon, but who is not
Equinox Iranian calendars as Nowruz (means new day), while the autumnal equinox (September) marks the beginning of autumn. When Julius Caesar established the Julian calendar in 45 BC, he set 25 March as the date of the spring equinox; this was already the starting day of the year in the Persian and Indian calendars. Because the Julian year is longer than the tropical year by about 11.3 minutes on average (or 1 day in 128 years), the calendar "drifted" with respect to the two equinoxes — so that in AD 300 the spring equinox occurred on about 21 March, and by