What is a rising sign?
Your rising sign, or ascendant, is the zodiac sign that was climbing over the eastern horizon at the exact moment and place you were born. It is often described as the "mask" you meet the world with — your outward style and first impressions — and it sets the layout of the houses in your chart.
Why birth time matters for the ascendant
The ascendant changes roughly every two hours, so an accurate birth time and birth city are essential to calculate it correctly. Without a known time the rising sign cannot be determined reliably, and angle-sensitive placements become approximate.
What your rising sign means
Your rising sign colours how others first experience you and how you instinctively approach new situations. It describes a tendency and a style, not a destiny. Read it alongside your Sun and Moon for the full "Big Three".
Using the rising sign calculator
Enter your birth date, exact time, and city above. This free tool uses Swiss Ephemeris astronomy. Explore the wiki for what each rising sign expresses.