If the birth time is not provided, it is impossible to establish the ascendant degree with accuracy. Only when the individual knows the birth time range is within a few hours can the birth time be corrected by linking prior occurrences to the horoscope and planetary periods.
The problem of finding the ascendant in the absence of a birth time has baffled astrologers for centuries. The only way to estimate an individual's ascendent planet is by analyzing the date and time of one's birth. There are several methods used by astrologers to determine which planet rules the ascendant. The most popular method is based on the idea that each planet influences humans in different ways at different times during their lives.
The task of determining an individual's planets is complicated by the fact that they all affect us at various times throughout our lives. It is also difficult because we get clues about their effects through a variety of means rather than just through the planet itself. For example, a person might see a friend succeed in something she wanted to do, or fail at something he wanted to try, and attribute her success or failure to a particular planet. In addition, people often claim that they know what house the ascendant planet lies in, but this guess is usually wrong. Last, there is no way to accurately predict how any particular person will react to changes made in his or her chart.
You may identify your rising sign (or ascendant) without a birth time if you are willing to perform some detective work. The Rising Sign or Ascendant defines what others know the most about you—what truly jumps out—even if it isn't the true you! Your rising sign is determined by looking at the planets when you were born. If you were born between January 2 and December 31, your rising sign is the planet that rules your chart when you were born. For example, if you were born on April 5th, your rising sign is Cancer.
Your rising sign only tells us something about yourself that is true for the person you were at the time of your birth. It may describe someone very different from who you are today. So, for example, if I was born with Pluto in Capricorn ruling my chart, even though I'm not like that guy at all, it would still be correct to say that I have a Capricorn rising sign. The same is true of everyone else. Only you can tell how you feel about this information. Some people use their rising signs as a way to understand themselves better. Others might find it helpful when making decisions about their lives. Either way, your rising sign is an important part of your chart.
There are two methods for determining your rising sign: using a chart or using the method of indications. The first method uses the zodiac to determine your rising sign.
If you are unable to get your birth time, astrology can still be quite beneficial.... Get a "Simplified Birth Chart" If You Don't Know Your Birth Time
How Can I Obtain A Simplified Birth Chart For An Unknown Birth Time?
When You Don't Know Your Birth Time, Here's How to Get an Astrology Reading:
While reading the birth chart, an experienced astrologer can determine the validity of the birth time. He reads the horoscope, interpolates historical occurrences into the charts, and double-checks the timings. This indicates whether or not the birth time is correct. If necessary, he may ask for additional details about your birth family or place of birth.
The best way to find out when you were born is to check the birth certificate. However, most people don't have a copy of their birth certificate available. If you can't find your birth certificate, it may be obtained from your county records office. Some records offices may charge a small fee for copies - please call ahead to make sure.
If you still can't locate your birth certificate, there are several websites that will estimate when you were born based on your name, address, and date of birth: http://www.estimatingtrueage.com/index.php?r=1&q=john+doe&n=name%20here
Here are two other sites that will estimate your age based on your name: http://www.howold.net/johndoe
Because the moon does not change signs every day, birth time is not always necessary. On some days, you may learn your moon sign without knowing your birth date. However, this method is not reliable for determining future behavior or for finding a pattern in your own life.
The best way to find out your moon sign is by checking what sign the Moon is in at the time of your birth. The table below shows which planets are associated with each sign of the zodiac. Knowing these relationships will help you understand how your personality traits are influenced by the stars at the time of your birth.
It is also possible to determine your moon sign by looking up your birth date in the table below. For example, if you were born on January 1st, then you have a moon sign of Cancer. The Sun was rising in Cancer at the time of your birth and it remains in Cancer all day long until 3:44 am when it moves into Pisces. At that point, your moon enters a new sign for the first time since your birth - Cancer.
This method may not be accurate because it is based on an interpretation of your birth data, but it is easy to use and can give you a good idea of what kind of person you are like.