DavidMcCann
Back in the 1970s (if I remember correctly) a group of Scots astrologers collected newspaper "horoscopes", kept diaries, and then compared them. The predictions fared no better than chance. But then that was what they expected, since sun-sign forecasts are not astrology in any real sense.
As for "pseudoscience", that would be a subject which pretended to be a science but wasn't. So, first one needs to define "science". If you use it in the most common modern sense, as short for "physical science", then astrology cannot be a pseudoscience since it doesn't claim to be a science in that sense. If you use it in the older sense, which it still has in French and other European languages, to mean a discipline with a verified body of discoveries and a method of making more, then astrology clearly is a science. For example, some years ago two groups of astrologers, one in Australia and one in the USA, studied unaspected planets in horoscopes. They worked without being aware of each other, but their published results were the same. In my experience those who dismiss astrology as a pseudoscience either don't know what astrology is, or don't know what science (of any sort) is, or both!
As for "pseudoscience", that would be a subject which pretended to be a science but wasn't. So, first one needs to define "science". If you use it in the most common modern sense, as short for "physical science", then astrology cannot be a pseudoscience since it doesn't claim to be a science in that sense. If you use it in the older sense, which it still has in French and other European languages, to mean a discipline with a verified body of discoveries and a method of making more, then astrology clearly is a science. For example, some years ago two groups of astrologers, one in Australia and one in the USA, studied unaspected planets in horoscopes. They worked without being aware of each other, but their published results were the same. In my experience those who dismiss astrology as a pseudoscience either don't know what astrology is, or don't know what science (of any sort) is, or both!