Cosmobiology

Historically, the term 'Kosmobiologie' was used by the German medical astrologer Friedrich Feerhow and Swiss statistician Karl Krafft in a more general sense "to designate that branch of astrology working on scientific foundations and keyed to the natural sciences".

The term Cosmobiology was popularized in English after the translation of the writings of Reinhold Ebertin, who based a large part of his techniques on the midpoint-astrology work of Alfred Witte

The term Cosmobiology as most frequently used in the English language, refers to the school of astrology founded by Ebertin. The main difference between Witte's Hamburg School and Ebertin's Cosmobiology is that Cosmobiology rejects the hypothetical Trans-Neptunian objects used by the Hamburg School and practitioners of Uranian astrology. Another difference is the significant expansion of Cosmobiology into medical astrology, Dr. Ebertin being a physician.

Cosmobiology continued Witte's ultimate primary emphasis on the use of astrological midpoints along with the following 8th-harmonic aspects in the natal chart, which both Witte and Ebertin found to be the most potent in terms of personal influence: conjunction (0°), semi-square (45°), square (90°), sesquiquadrate (135°), and opposition (180°).