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DPL-10 Rectification Basics

6 Class Meetings
Prerequisites: Basic knowledge of natal astrology, transits, solar arcs, and progressions (NAT module, PSM-1, and PSM-2 completed)

Course Description:

Rectification of the birth time is the technique to determine the correct birth time based on the astrological events affecting the native's chart that are associated with significant life events in the past. The ability to rectify the birth time is a requirement for certification with NCGR and other astrological organizations and a very helpful tool in consulting work with clients.

Students will need: * at least a basic knowledge of natal astrology, transits, solar arcs, and progressions * access to a 20th and 21st century ephemeris, in print or online * some lined paper with at least 30 lines per page * a ruler or other straight-edge drawing tool * at least four different-colored pens or fine-point colored markers


Class Meeting 1: Introduction to Rectification

It’s more time-consuming than difficult. Bonus! Doing rectifications can teach you a lot about astrology.It’s not an exact science. Be frank with clients about that.What rectification has in common with being a lifeguard . . .Helping clients find their birth time if possibleThe time frame: the narrower, the better. It’s best if they know the birth time within six hours, * with some exceptions If all they don’t know is whether it was AM or PM If the Moon changed signs that day, you might be able to rectify the chart How to use “tie-breaking questions” for Moon signs or Ascendant signsUsing transits, solar arcs, and the progressed Moon: three techniques for cross-checking. Collecting a list of meaningful life events and their dates from the client without “leading thewitness.” * as accurately as possible (see “working with the client’s list of events,” below.)* asking for photos of the client at as many different ages as possible.* the vital importance of confidentiality!* the events are what’s meaningful to the client and in what way, not what’s meaningful to youDrawing the blank degrees-and-modes diagram (DAM for short)Why are we looking at modes and not elements in this diagram?Using fourth and second harmonic aspects (conjunction, square, opposition)Casting charts for the time frame’s beginning & end, and for several intervals in betweenWorking with the client’s list of dates and events * Asking for clarification if necessary* What transiting planets’ positions to notate directly on their double-spaced list of events, and which ones to list if the client knows only the year, season, month, or week.*Color-coding the events by types: *at least by Asc/Desc. events, MC/IC events, and geographic moves (a subset of IC events, but may also relate to solar arcs). *color-coding other types of events is optional but recommended. For example, using a specific color for the transiting positions of Uranus, Neptune and Pluto can help you not over-emphasize them in your rectification work. Filling out the degrees and modes diagram (DAM) with the transiting planets’ positionsColor-coding the events on the DAM by at least Asc-Desc related and MC-IC-related

Class Meeting 2: More About Choosing Events from the Client’s List

What events did you decide to include from the example-client’s list, and why?Did anything from the client’s list need clarifying?Did you decide to color-code anything but Asc/Desc, MC/IC, and changes of address?What to write down on the DAM first.Tips for the absent-minded or those who might lose their place on the list or the DAM.Keep everything you do and all client communications with the client’s rectified chart.We’re looking for a *relationship between the Ascendant and the MC*, not just for the Asc.Note: the MC moves a certain number of degrees in the zodiac per a certain number of minutes of time (in most house systems).The importance of the ruler(s) of the Ascendant.

Class Meeting 3: Solar Arc Directions

What sorts of events did you decide to color-code? Why?

Why solar arcs are useful in rectifications.We’ll look at the quick-and-dirty (for now) solar arcs in effect during this client’s important events, using up to a two-degree orb (on either side of the exact aspect) for the solar arcs. 1. Do the solar arcs appear to support a particular degree for the Asc.? 2. “ “ for the MC? 3. “ “ for planets arc’ing into different houses?4. Review what the solar arcs may have shown you, in addition to what the DAM of the transits has already shown you.* As many events, transits and solar arcs as possible should “fit” one of the charts you cast for several intervals within the birth’s time frame, OR you may want to run another chart for another possible birth time falling between those intervals. *Decide as best you can what birth time seems to work the best, and run a chart for that birth time. We aren’t done yet! Right now you’re just taking your best guess

Class Meeting 4: Secondary Progressions

We’ll discuss how the best-guess chart’s secondary progressions (starting with but not limited to the progressed Moon in the houses), and how the best-guess chart’s solar arcs, all fit the chart produced by your best-guess birth time. ***Pay particular attention to events involving house ingresses and the angles, because they are the most sensitive to changes in the birth time.*** Do events seem to be happening a little earlier than your progressions and arcs list might have predicted? A little later? Depending on our discussion, you may want to adjust your best guess of the birth time, re-run a list of secondary progressions and solar arcs based on the adjusted birth time, and see how the new list of progressions and arcs fits the chart produced by the adjusted birth time—or you may decide that your first best-guess chart works quite well and you want to stick with it. Q and A.

Class Meeting 5: Putting it all together

We’ll discuss what birth time you chose, based on our work on this chart so far.How much did your final estimation of the birth time change from what you guessed when you looked only at the transits? Description of the final and how it’s scored. What would you like to review for the final? Please come to the next class prepared with any questions or comments, or feel free to email them to me ahead of class.

Class Meeting 6: Practice Test and Review

Practice test (Part One) done in class as a review for the final.Concluding remarks.Any more Q and A.

Required/Suggested Materials:

Required materials:

The following required materials are NOT available through the IAA online shopping areas, but may be available elsewhere:

  • 20th and 21st century ephemeris, in print or online
  • lined paper with at least 30 lines per page
  • a ruler
  • at least four different-colored pens or fine-point colored markers

Suggested/supplemental materials:


Class Offerings and Registration:
1 class offering is currently scheduled for this course.

Meets: Saturday, 12:00 pm - 01:30 pm, U.S. Eastern
First class date: January 11, 2020
Instructor: Jodie J. Forrest
Tuition: $355.00

Final registration: Closes on January 18, 2020

Click here to register for this class

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