Heliocentric Planetary Aspects and Transits
Heliocentric Planetary Aspects and Transits

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Heliocentric means Sun-centered, whereas geocentric means Earth-centered. This software, Heliocentric Planetary Aspects and Transits (HPAT) is derived from the author's earlier Planetary Aspects and Transits (PAT) program, and is functionally equivalent to that program, except where heliocentricity implies a difference. For example, in geocentric astrology planets may appear to move backwards (they are then said to be retrograde), but in heliocentric astrology a planet is never retrograde. And in geocentric astrology there are two zodiacs in use, the tropical and the sidereal, and PAT supports both, whereas in HPAT there is just one zodiac.

The difference between geocentricity and heliocentricity can be illustrated by the charts of the planetary aspects on a certain date as produced by PAT and HPAT. Here are the charts for July 15, 2015:

Geocentric (PAT)
 
July 15, 2015, geocentric
  Heliocentric (HPAT)
 
July 15, 2015, heliocentric

The Earth is at the center of the geocentric chart, whereas the Sun is at the center of the heliocentric chart. In the heliocentric chart the Earth is located just above Pluto at the bottom.

Three things to note:


Here is another example of the difference, the geocentric and heliocentric planetary aspects at 9 am EDT on 'Black Monday', August 24, 2015, at the start of the 1000-point drop in the Dow-Jones Index. The six T-squares (each with a Mercury-Saturn conjunction at the apex) in the heliocentric chart would have suggested a bad day to anyone knowing anything about astrology, and for stock holders and pension funds it was indeed a bad day. The geocentric chart, however, shows a grand trine, usually associated with a favorable situation.

Geocentric (PAT)
 
Black Monday, geocentric
  Heliocentric (HPAT)
 
Black Monday, heliocentric


See also a further Comparison of Geocentric and Heliocentric Planetary Configurations


The primary output of the program is the display of the heliocentric planetary configuration for a particular date and time, in both table form and chart form. Here is an example of the chart for 5 am GMT on January 3, 2016:

Screenshot HPAT chart

Lines joining planets show aspects, colored as at right. Colors and orbs are user-selectable. (The "av." value is explained here.)

Clicking on the 'Display table' button produces a tabular representation which provides detailed information about the aspects shown in the chart, as below:

Screenshot HPAT table

An angle value shows difference of the aspect from exactness (so 0°0' is exact). A '-' or '+' shows whether the aspect is decreasing ('-') or increasing ('+') at the date and time shown, or in other words, whether the aspect is applying ('-') or separating ('+').


User Manual


Trial version: A free trial version of Heliocentric Planetary Aspects and Transits can be downloaded from this website for the purpose of evaluation of the software. Click on the following link for further information:

Download Heliocentric Planetary Aspects and Transits ...


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Price and ordering: A single-user license is available for a period of 3 months, 1 year or with no time limit (a 'perpetual' license). Prices for each type of license are given at Purchase a User License. An activation key is required in order to make the trial version fully functional. An activation key can be obtained immediately if you purchase a user license either via PayPal or via Share-it.

Refund: A refund will be provided promptly up to 30 days after purchase if the software does not perform satisfactorily.

Updates: Purchasers of a user license for this software are entitled to an update to any later version at no additional cost.

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