Technically there are no cusps...there are 30 degrees in each sign...the sun sign will fall into either one sign or the other. It takes specific birth times to ascertain what degree the sign is in. For Lorena born on Sept 23rd, some years, that date will be 0-1 degree Libra, other years it will 29-30 degrees Virgo. The birth time is crucial to find out the exact degree. The luminaries (Sun and Moon signs) give off an "orb" that extends up to 5 - 10 degrees on either side of the exact degree of the planet. So, if you have your sun at 1 degree Libra, it will have influence all the way back to 25 Virgo and forward to 6 Libra..but the height of the energy will remain at 1 degree Libra. In this way your sun is mainly Libra but will have some Virgo highlights, like an overall Libra haircut with subtle Virgo colourings...Does this make sense? You "cuspers" who have posted above are intuitively correct. You are so much more than your sun sign! Astrology is layers upon layers of blendings...in this way, we're all cusp-babies because no one is EVER just one sign!