In the sidereal zodiac , the constellations are not of equal 30-degree arc , with the Sun being in Cancer , for example , for just three weeks , whilst being in Virgo for six weeks .
Tropical astrologers , on the other hand , may counter with the fact that despite claims to the contrary , the sidereal zodiac does not actually match up with the constellations of the same name owing to the fact that the signs of the sidereal zodiac are of equal 30 degree arc , whereas the constellations are not , with the Sun being in Virgo , for example , for just two weeks , whilst being in Leo for just over a month ( see table below ) .
Sidereal and tropical astrology