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                                                                        As one studies medical astrology, one will notice that the chart reveals itself through the 
                                                                    planetary aspects. The planetary aspects are classified as hard or soft.  The hard aspects as used in 
                                                                    medical astrology are the semisextile, square,  semisquare, sesquiquadrate, quincunx and opposition.  
                                                                    The soft aspects are the trine and the sextile.  The 
                                                                         semisextile is considered a hard aspect since its effects are similar to the quincunx in that inharmonious 
                                                                         signs are brought into play.   The conjunction is the 
                                                                         strongest aspect in its effects on health and is interpreted according to the nature of the planets 
                                                                         involved.   All the aspects have an effect on health 
                                                                         interpretation  with the strongest combinations being those that involve the personal points of the 
                                                                         chart -- the Sun,  Moon and the angles (Ascendant, Descendant, Midheaven, Imum Coeli,  and the 
                                                                         Vertex and Antivertex.)  For more advanced students, aspects are also used when describing midpoint 
                                                                         combinations in the chart.   The chart interpretation in 
                                                                         the next section (29.5)  will help to clarify the 
                                                                         preceding information.  It should be pointed out that before one can become a medical astrologer, one 
                                                                         must be proficient in traditional astrology.    The 
                                                                         chart of the astronomer, Carl 
                                                                         Sagan, deceased in 1996, will be used to teach some of the 
                                                                         concepts of medical astrology.  (Carl Sagan - born 11/9/1934 at 5:05 PM in New York City.)  
                                                                    A cursory glance at his chart  using the point system shows 
                                                                         that he has a majority of planets in the fixed quadrature.  As stated previously an emphasis in the 
                                                                         fixed quadrature can indicate disorders relating to the signs on the fixed quadrature -- Taurus, Scorpio, 
                                                                         Leo and Aquarius.  It can describe a chronic disease that lasts a 
                                                                         long time.  Disease can be cumulative in nature such as growths and tumors, building up over the 
                                                                         course of time.  There can be excess toxicity in the body.  An emphasis in the fixed cross can 
                                                                         also describe a rigid, unbending nature.  Although this interpretation will only concentrate on the 
                                                                         final years of Carl Sagan's life, we do not know what other medical problems he may have had during his 
                                                                         life. In examining the elements we note a weakness in the air 
                                                                         element and an excess in the water element.  The weakness in the air  element is exacerbated by 
                                                                         the placement of Saturn in Aquarius.  Saturn weakens whatever sign it is placed in and indicates a 
                                                                         part of the body that needs to be nourished.  There is less blood supply supplied to any organ 
                                                                         described by the sign that Saturn tenants in the birth chart.  With Saturn in Aquarius and a weakness 
                                                                         in the air element, there can be a weakness in the process of oxygenation (poor supply of oxygen in the 
                                                                         blood) and a weak nervous system.  Circulation can be poor also.    
                                                                         It should also be pointed out that Saturn is the most elevated planet in the chart, thus 
                                                                         increasing its strength for better or for worse. An excess of water in the chart can indicate water-logged 
                                                                         tissues. Stagnant water can contribute to hardening in the body.  Too much water can contribute to 
                                                                         mucous and phlegm,  cysts and tumors in the body. 
                                                                         Earlier it was stated that aspects to the angles by certain planets can indicate proneness to diseases 
                                                                         related to that quadrant.  Carl Sagan's Taurus Ascendant receives a square from his elevated Saturn. 
                                                                         His fixed Midheaven receives a square from the planet Uranus. This further magnifies the emphasis and 
                                                                         problems in the fixed quadrature. When examining a chart for 
                                                                         vitality and resistance to disease, one first examines the Sun in the chart.  Carl Sagan's fixed Sun 
                                                                         in Scorpio receives a square from Saturn.  This can indicate vitality problems, the possibility of a 
                                                                         chronic disease and the potential for bone problems.   Carl Sagan 
                                                                         was diagnosed with a bone marrow disease  -- myelodysplasia -- in 1994.   One should also 
                                                                         note that Carl Sagan had a Mars Neptune conjunction in Virgo. The Mars Neptune midpoint is the point of 
                                                                         toxicity in a chart.  Here we have a conjunction which may have manifested as weak intestines and a 
                                                                         potential problem with insulin production (Virgo)  in the body.  The processes of discrimination 
                                                                         and assimilation in the body were off.  Although not in itself indicative of bone cancer, the body 
                                                                         itself could be weakened by other factors making it harder to resist disease.  
                                                                         There is a point in the birth chart known as the Vertex - considered the third angle of 
                                                                         the chart --  a point out of our control and possibly fatalistic.  
                                                                         Carl Sagan's Vertex was in Libra and receives an opposition from Uranus and a square 
                                                                         from Pluto. This is a difficult combination and indicates a potential problem in the cardinal cross.   
                                                                         One of the signs on the cardinal cross -- Cancer -- rules bone marrow. Carl Sagan's Pluto in Cancer squares 
                                                                         his Vertex in Libra. Click here to go directly to section 
                                                                         29.5  to review the chart of the astronomer, 
                                                                         Carl Sagan.
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