Western Astrology
<p><b>Western astrology</b> is the system of <a href="https://en.wikipedia.org/wiki/Astrology" title="Astrology">astrology</a> most popular in Western countries. Western astrology is historically based on <a href="https://en.wikipedia.org/wiki/Ptolemy" title="Ptolemy">Ptolemy</a>'s <i><a href="https://en.wikipedia.org/wiki/Tetrabiblos" title="Tetrabiblos">Tetrabiblos</a></i> (2nd century AD), which in turn was a continuation of <a href="https://en.wikipedia.org/wiki/Hellenistic_astrology" title="Hellenistic astrology">Hellenistic</a> and ultimately <a href="https://en.wikipedia.org/wiki/Babylonian_astrology" title="Babylonian astrology">Babylonian</a> traditions.
Western astrology is largely <a href="https://en.wikipedia.org/wiki/Horoscopic_astrology" title="Horoscopic astrology">horoscopic</a>, that is, it is a form of <a href="https://en.wikipedia.org/wiki/Divination" title="Divination">divination</a> based on the construction of a <a href="https://en.wikipedia.org/wiki/Horoscope" title="Horoscope">horoscope</a> for an exact moment, such as a person's birth, in which various cosmic bodies are said to have an influence. Astrology in western <a href="https://en.wikipedia.org/wiki/Popular_culture" title="Popular culture">popular culture</a> is often reduced to <a href="https://en.wikipedia.org/wiki/Sun_sign_astrology" title="Sun sign astrology">sun sign astrology</a>, which considers only the individual's date of birth (i.e. the "position of the Sun" at that date).
Because astrology has failed in predictions when under scientific tests, it is generally regarded as <a href="https://en.wikipedia.org/wiki/Pseudoscience" title="Pseudoscience">pseudoscientific</a>.<sup id="cite_ref-SvenOve_1-0" class="reference"><a href="https://en.wikipedia.org/wiki/Western_astrology#cite_note-SvenOve-1">[1]</a></sup><sup id="cite_ref-ASotP_2-0" class="reference"><a href="https://en.wikipedia.org/wiki/Western_astrology#cite_note-ASotP-2">[2]</a></sup></p>