To start, the astrological birth chart is based on the exact time, the city, the state and the date that you were born. If you are unsure, it is important for you to check your birth certificate for all of this information. Once you have this information you can go to a number of sites that will tell you all of your astrological information.
A few websites are:
http://astro.cafeastrology.com/natal.php
https://alabe.com/freechart/default.asp
https://horoscopes.astro-seek.com/birth-chart-horo...
Each of your planetary positions are going to be represented by a specific astrological sign:
Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces.
Your overall Astrological Birth Chart is going to be broken up into 11 different sections; Sun Sign, Ascendent/Rising Sign, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.
*Disclaimer, it might help to have an overall description of each astrological sign up to help reference*
Sun Sign
The Sun sign is the part of your chart that you probably already know. It's the sign you look for when looking for your horoscope, and this is determined by your birth date. Your sun sign gives you an overall idea of what makes you, you. There may be characteristics of your sun sign that you don't personally identify with which is okay, this is because the other characteristics are going to be represented by one of the other sections in your birth chart!
Ascendent/Rising Sign
Your rising sign or your ascendant is a representation of the way others see you. This means the general impression you make on people and your spontaneous reactions as well. Your ascendent sign reflects the zodiac sign that was ascending on the eastern horizon the exact moment that you were born. The interesting thing about the ascendent sign is that it is so outward that it can even influence your physical characteristics/the way you look and your mannerisms.
Moon Sign
Your moon sign is what reveals your inner self to be like. This sign can give you insight into how you handle your emotions and fears as well as the way that you love and feel. This means that the moon also controls your moods and makes itself known in your intimate relationships. Your sign can also interpret your relationship to your mother and your subconscious thoughts. Overall your moon sign can ultimately determine how you love and whether or not love is important in your life, and can also play a role in the specific type of people you are attracted to.
Mercury
Your mercury sign is connected to how you communicate, how you reason, your overall intellect and your awareness. Mercury is the messenger of the gods and has a large affect on brain power which will show short term planning, observation and deductive reasoning abilities. It inspires ideas, thought processes, analytical ability and the unconscious mind as well. Your mercury sign also determines your overall study habits, so when your natal Mercury is shown as retrograde, you may find some challenges of your own in communicating, learning and other areas related.
Venus
Your venus sign, named for the Roman Greek goddess of love, Aphrodite rules a persons love life. This sign explains the way in which you express affection, what you look for in a partner and what you generally find to be attractive. Venus shows us how we approach relationships of our heart, and also what gives us pleasure. Your venus sign will also show how you spend your money, the types of gifts that you buy ad how much you spend on leisure activities (and which activities you seek out). Venus signs in men and women charts are interpreted differently however.
Mars
Your mars sign represents conflict, aggression and action. Mars is the God of war and represents physical expression of your initiative and drive as well as applicable to your sex life and ambition in business. This sign explains the ways you channel desire and anger and is the planet of energy, action and desire which means it rules our overall animal instincts for aggression, anger and survival. Your sexual desires come under the rule of mars and mars is most associated with basic bodily attraction. The position of mars by sign shows our overall basic sexual nature, how we express our temper, what makes us angry and our first instinct to act instead of react. Mars explains the competitive nature that you personally have as well.
Jupiter
Jupiter is the King of the Gods and your Jupiter sign helps interpret the luck you have, your education and your growth. Your sign is also seen to be very philosophical and can indicate how you personally feel about religion. Since Jupiter is the first of the social planets you will learn how you view morality, gratitude, hope, honor, and the law. Your sign represents how you express your generosity and tolerance and how you go about trusting others and improving yourself. Jupiter is a planet of broader purpose, reach, and possibility and will explain your view on optimism and your growth mentally and spiritually.
Saturn
Your Saturn sign is a representation of your limitation and boundaries. This sign can help you reveal what you are needing to overcome and the restrictions that could slow the process. Your saturn sign is associated with restriction and limitation and brings structure and meaning to your world. Saturn also knowns the limits of time and matter and reminds us of our responsibilities, boundaries and commitments. This sign brings definition into our lives and makes us aware of the need for self control and the boundaries of our limits. Saturn is also associated with a father/authority figure which has helped you understand the world around you. Lastly Saturn reveals your own limitations, fears and your sense of responsibility.
Uranus
Your Uranus sign rules change, and is the God of the sky and the heavens. Uranus is associated with technology, innovation, discovery, and all that is progressive. Uranus is highly intuitive and represents the spark of intuition that spurs invention. Where we find Uranus in the chart is where you see some refusal to blend in with others and situations, and some erratic life patterns.
Neptune
Neptune rules dreams, and is the God of the Sea. Your Neptune sign considers your inspiration, dreams, psychic receptivity, illusion, and confusion. Neptune rules spirituality, and all things subtle, where intuition, dreams, and psychic sensitivity come into play.
Pluto
Pluto rules power, the God of the Underworld. is the ruler of Scorpio. The energies of Pluto are transforming and your Pluto sign represents subconscious forces, ruling all that is “below the surface". It represents endings and new beginnings, as well as spiritual growth and rebirth. This sign is where you search for truths and deeper meanings; this area of life may be associated with change, upheaval, power struggles, and issues of control.
I hope this helped you learn a bit more about yourself and that you possibly had some revelations.