In addition to viewing the planetary lines of a natal chart over a map, an additional technique that can be used is to view the planetary lines of progressions, directions or transits to that natal chart. As these charts vary with time (ie. they are dynamic), it is possible to use this technique as a predictive tool, by looking at how planetary lines change over a period of time.
When a progressions, directions or transits chart is used to display planetary lines, it is necessary to retain the original chart angles from the natal chart, so that one can see how much planets have moved in relation to their natal positions. This is similar to the concept of a bi-wheel, where the progressed, directed or transiting chart is displayed around the natal chart, and where the house cusps remain fixed in relation to Ascendant and Midheaven of the natal chart.
As an illustration, consider the transiting Sun. This moves roughly 1º per day, so in relation to its natal position, it would have moved roughly half way around the world after 6 months, and have returned to its natal position after about one year. The secondary progressed Sun, however, moves only about one degree per year, so in relation to its natal position, it would have moved only about 30º after 30 years of life.
Solar Maps allows you to cast a chart for secondary progressions, tertiary progressions, solar arc directions, or for transits, for any specified date.
The method of Cyclo*Carto*Graphy®, also developed and registered by Jim Lewis, uses a mixture of transiting and secondary progressed planets. For a particular date, it uses the outer transiting planets (Jupiter, Saturn, Uranus, Neptune and Pluto) and the inner progressed planets (Sun, Moon, Mercury, Venus and Mars). Solar Maps includes this technique under the name “Sec.Prog + Transits (CCG)”. If you were to compare chart lines using this technique to those for secondary progressions and transits, you would see that the CCG lines for the inner planets correspond to the same secondary progressed lines, and the CCG lines for the outer planets correspond to the same transit lines.
An Example
This example involves looking at a map of Adolf Hitler’s transits at the time of his invasion of Poland - 1st September 1939. This can be done in Solar Maps by first opening or casting Adolf Hitler’s natal chart (20 Apr 1889, 5:37:52 PM UT+0:00, Braunau am Inn, 48N15 13E02), and then casting a subsidiary chart for 1 Sep 1939, and selecting the Transits option. The transiting Planet/Angle lines over the European region are shown in the following map.
Of particular note is that transiting Pluto is conjunct Hitler’s natal Midheaven right over his home country of Germany. This indicates that issues of power are culminating for him in Germany. Also, over Poland, transiting Saturn is conjunct his Descendant, indicating strains in his relationship to that area, and the Moon’s North Node is conjunct his Ascendant (and therefore the South Node is conjunct his Descendant), indicating that there may be an ending of relationships as a result of past issues.
A further intriguing fact is that, if we look at his tertiary progressions for the same date, progressed Uranus is on his Ascendant along a line which also passes straight through Poland. This is an indicator of sudden and unexpected actions, which in this case manifested as a sudden military invasion.