Cusp

In astrology, a Cusp is the imaginary line that separates a pair of consecutive signs in the zodiac. Because the solar disc has a diameter of approximately half a degree, sometimes the Sun with straddle the cusp as it moves across the sky. When this happens on the day some one is born it's said that the person is "born on the cusp" and some believe that their life is influenced by the characteristics of both signs.

For example, if an individual was born in 2020 when the Sun was located at 29 degrees, 50 minutes Gemini, then one might say that he was born on the cusp of Gemini and Cancer. Much of the Solar disc was actually in Cancer even though the center was in Gemini.

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