However, due to precession, the Earth has moved on its axis since then, and the dates used to identify the signs no longer correlate to the backdrop constellations that give them their names. In reality, the timeline has migrated by one sign to the west. That is to say, depending on the mathematical division of the year, zodiac sign dates roughly correspond to the position of the sun in the constellations of the signs preceding them today. (The fixed character of the signs is also why the Minnesota Planetarium Society’s 2011 argument that a 13th zodiac sign, Ophiuchus, should be added now, failed to result in a major astrological shift.)
“Previously, astrologers looked at where the sun was in relation to background constellations in general, and that almost exactly matched up with the signs of the zodiac defined by Ptolemy,” Odenwald adds.
Astrologers now base their calculations and predictions on where the planets and the sun are in relation to the 12 fixed signs, rather than where they are in relation to the constellations. According to astrology, if the sun is in the sign of Sagittarius on your birthday, you are a Sagittarius.
What method do I use to keep track of all of my astrological signs?
When people inquire about your zodiac sign, they usually mean your Sun sign. And, to be honest, everyone knows what their Sun sign is. It’s easy to check it up now that we have the Internet, and at the very least, everyone has been intrigued about what the stars have to say about them. Some people completely identify with their Sun sign, while others find it completely incomprehensible.
There are a number possible explanations, including your Moon sign and Ascendant, which I’ll discuss later. Even if you don’t exactly relate to the attributes of that zodiac sign, from the perspective of the sky, you will find patterns that correlate due to planetary motions at any given moment, thus I always urge people to read for the Sun sign in daily/monthly/yearly horoscopes.
Your Sun sign is determined by your birthday. If you were born on a day when the Sun changed signs, you may need to consult a personal natal chart because you may be one sign over the other. Because you can’t have two Sun signs, cusps don’t exist (despite pop culture magazines’ best efforts; Karen, stop trying to make them a thing!).
Is there any truth to astrology in Islam?
Astrology is the study of celestial bodies’ movements and relative placements, which are thought to have an impact on human affairs and the natural world. According to historian Emilie Savage-Smith, astrology (ilm al-nujm, “the study of the stars”) was “by far” the most popular of the “many activities aiming to predict future occurrences or perceive hidden phenomena” in early Islamic history.
Despite Islamic prohibitions, some medieval Muslims were interested in studying the apparent motion of the stars. This was partially due to their belief in the importance of the celestial bodies, and partly due to the fact that desert inhabitants frequently traveled at night and relied on knowledge of the constellations for navigation. Muslims needed to determine the time of prayers, the direction the kaaba would face, and the correct orientation of the mosque after the arrival of Islam, all of which helped give a religious impetus to the study of astronomy and contributed to the belief that the celestial bodies had an impact on terrestrial affairs as well as the human condition.
The criteria for Islam’s attitude on astrology are laid out in Islamic jurisprudence, the Quran, the Hadith, Ijma (scholarly consensus), and Qiyas (analogy). The idea is further differentiated into that which is either halal (authorized) or haram (forbidden) (forbidden). The view that astrology is forbidden by the authorities, as enshrined in the Quran and Hadith, is shared by all Islamic sects and academics.

