KosmosYour zodiac sign (more precisely, your Sun sign) tells you which section of the zodiac the Sun occupied when you were born. Western astrology divides the sky into twelve sections of 30 degrees each, beginning with Aries at the spring equinox. Each sign has its own element, quality, and ruling planet. Together, they form the character profile that tradition associates with each sign.
Not sure which sign you are, or born on a cusp day? The free star sign calculator tells you in seconds, and the Ascendant calculator shows you which sign was rising on the horizon at the time of your birth. Choose your sign below for the full profile, including dates, decans, and meaning.
The four elements: fire, earth, air, and water
Three signs share each element, the oldest organizing principle of the zodiac. The element describes the basic temperament: how a sign perceives, decides, and acts. You can read more in the article The four elements of astrology.
Fire (Aries, Leo, Sagittarius): Drive, enthusiasm, and the urge to express. Fire signs spark momentum and inspire those around them.
Earth (Taurus, Virgo, Capricorn): Groundedness, stability, and a sense of the tangible. Earth signs build what lasts.
Air (Gemini, Libra, Aquarius): Thinking, exchange, and connection. Air signs thrive on ideas, words, and encounter.
water (Cancer, Scorpio, Pisces): Feeling, intuition, and inner depth. Water signs sense a mood before anyone puts it into words.
Star sign, Ascendant, Moon sign: what is what?
Your star sign is just one of many building blocks in your horoscope: it describes the Sun, your core identity. Your Moon sign speaks to your emotional world, and your Ascendant to the way you present yourself and the impression you make. How the three work together is explained in the article Sun, Moon, and Ascendant: the Big Three. Only your complete birth chart brings all these levels together into your individual picture, with houses, aspects, and all the planets.
What Are the Dates for All Twelve Star Signs?
Each zodiac sign lasts about a month. You’ll find the exact dates on the sign pages above. This is important if you were born on a cusp date: The Sun moves into a new sign at a slightly different time each year. So whether you’re still a Capricorn or already an Aquarius depends on your birth year and time. The article What Is My Zodiac Sign? explains cusp dates, and calculating your birth chart using your date, time, and place of birth will give you the exact answer.
By the way: you can read for free how all twelve signs move through the current year in the 2027 Yearly Horoscope for all star signs, month by month, based on real planetary movements.
Your star sign is just the Sun. Your Ascendant shows how others perceive you, and your Moon sign reveals what you feel and need. Which signs are compatible in love is covered in the table of all 78 combinations.
Only know the birth month? Here you can find which signs apply in each month: January, February, March, April, May, June, July, August, September, October, November, and December.
Frequently asked questions about star signs
What is a star sign?
Your star sign (Sun sign) shows which section of the zodiac the Sun occupied at the moment of your birth. The tropical zodiac of Western astrology divides the year into twelve sections of 30 degrees each, beginning with Aries at the spring equinox.
Are zodiac signs and star signs the same thing?
In everyday use, yes: zodiac signs and star signs refer to the same twelve sections of the zodiac, from Aries to Pisces. Strictly speaking, a zodiac sign is a 30-degree section of the Sun’s path, counted from the spring equinox. The constellation with the same name, on the other hand, is a group of stars in the sky that has shifted in relation to the signs over the centuries. Western astrology, and KosmosGenie too, uses zodiac signs, not constellations.
What is my zodiac sign, and how do I find it?
Your birthday determines it: each sign covers a fixed period of roughly one month, for example Aries from 21 March to 19 April. The quickest way to find out is our free star sign calculator: enter your day and month and see the result instantly.
Why do the dates of star signs vary from year to year?
The Sun's entry into a sign shifts by several hours depending on the year, because the solar year is not exactly 365 days. Anyone born right on a cusp day may fall into the neighboring sign depending on their birth year and time of day. The only way to be certain is an exact calculation using your date, time, and place of birth.
What are the four elements of the star signs?
Each element is shared by three signs: Fire (Aries, Leo, Sagittarius) represents drive and enthusiasm, earth (Taurus, Virgo, Capricorn) represents stability and a practical outlook, air (Gemini, Libra, Aquarius) represents thought and communication, and water (Cancer, Scorpio, Pisces) represents emotion and intuition.
What is the difference between a star sign and an Ascendant?
Your zodiac sign describes the position of the Sun, while your Ascendant is the zodiac sign rising on the eastern horizon at the time of your birth. The Sun shapes your core nature, while the Ascendant has more to do with how you come across. You need your birth time and place to find your Ascendant. Calculate it for free with our Ascendant calculator.
How reliable are star sign descriptions?
You share your star sign with roughly one twelfth of all people. It describes traditional tendencies, not facts about you as an individual. Only a complete birth chart, including the Moon, Ascendant, houses, and aspects, reveals your unique picture. We treat all interpretations as a mirror for self-reflection, not as predictions.