What Is My Sun Sign and the Meaning of the Sun in Astrology ? For years, Sun sign astrologers have written about what are called “cusps” in astrology. I know this didn’t start with Linda Goodman, but it may have started with Sydney Omarr or perhaps even before that. I don’t know, and it’s really a misnomer that was started as a means of making the reader thinik there was something one could see as a nuance in astrology. Unfortunately, if one held one’s breath, such measures would have no more meaning than it has in actual Western or Eastern schools of astrology.
Sun sign astrologers call that “fine line” between two signs a “cusp.” It’s a misnomer. A cusp is the line between any two houses, not signs.