567 views at 07/11/2015.
My vector drawing of the Aquarius zodiac symbol.
Although the astrological sign of Aquarius may begin as early as 19th January in some years, the Sun typically leaves Capricorn and enters Aquarius on the cusp day 20th January. The Sun is in Aquarius under the tropical zodiac from approximately then to 19th February.
According to Hindu Astrology, which uses the Sidereal Zodiac, one can be an Aquarius at any time of year, as the defining factor of personality is interpreted from the Zodiac sign rising on the Eastern Horizon at the specific time of birth, rather than the astronomical transit of the Sun.