PRACTICE / 28 OF 36
Mark Your Tightest Aspects
By the end you can find the tightest aspect in your own chart and describe it using what each of the two bodies means.
Approved original lessons, free on the web · 2026-10-12
THE IDEA
Task: find the tightest aspect and write one line.
Diagram: a circle with a solid chord from the top for the 60-degree sextile and a dashed chord on either side at 56 and 64 degrees, showing this app's 4-degree tolerance, beside a note of the natal and transit orbs. A concept figure, not a real chart.
The aspect closest to its exact angle is the tightest.
Finding the tightest one
This app lists each aspect and how many degrees it is from the exact angle. The one with the smallest gap is the closest relation in the chart.
How this tool worksThe natal orbs this app uses are 8 degrees for conjunction and opposition, 6 for square and trine, and 4 for sextile.
How this tool worksSo a sextile half a degree off is far tighter than a conjunction seven degrees off.
Derived calculation“Tight” simply means close to the exact angle. When you read the list, look at the gap figure and read upwards from the smallest; the two or three tightest aspects are the best places to write your first line.
Reflection promptWhat the old texts say: in Book I ch. 13 of the Tetrabiblos, Ptolemy gives the four angles (180, 120, 90 and 60 degrees); ch. 24 says that when two places are not far apart, the one in front applies and the other separates.
Cited sourceSay what each body is first, then how they get along.
Write from what the two bodies mean
When you write the line, first say what each body describes (from earlier lessons), then the relation between them. A line built this way has real content and says more than “I have a Mercury–Saturn square.”
Reflection promptFor example: “Mercury is how I think and talk, Saturn is how I set limits and demands on myself; they are square, so I often check myself before I speak.” A common reading: a square is like two forces pulling against each other, a trine or sextile like two forces running the same way; a smooth relation is easy to use, while one that needs coordinating is often where you put in the most work and grow the most solid.
Later interpretationTo weigh the relation, ask two things: does it run smoothly, and does it take effort to coordinate? Those two questions let you describe the relation concretely. Either answer is a description, neither good nor bad; just hold it up against your recent experience.
Reflection promptWhat the old texts say: the book sorts aspects into harmonious and disharmonious, based on whether the signs joined are of the same kind (Book I chs. 13 and 12).
Cited sourceOBSERVE YOUR OWN CHART
Look at my chart
Your turn: look at your own aspect list. Aspects need no birth time.
- Find the aspect with the smallest gap from exact.
- Look back at what each of those two bodies described in earlier lessons.
- Write one line: do those two forces work together in you, or take turns?
Without a birth time, rising sign and houses stay blank.
LOOK CLOSER
A common mix-up
“More aspects means a more complex, more capable person.”
How many aspects you get depends on the orbs used; the count is simply what the settings produce. Each aspect describes a relation between two bodies, and the relation itself is what is worth looking at.
“The tightest aspect is the main theme of my life.”
Tight means close to exact. The old text judges from many conditions taken together.
CHECK YOURSELF
Now, try it yourself.
Sources and rights
- Ptolemy, Tetrabiblos, trans. F. E. Robbins (Loeb Classical Library, 1940)
Book I ch. 13 gives the four angles and the basis for harmonious and disharmonious — whether the signs joined are of the same kind, per ch. 12 — and ch. 24 says that when the interval is not great the preceding applies and the following separates, without any orb figure. This app's natal orbs — 8 degrees for conjunction and opposition, 6 for square and trine, 4 for sextile — are a modern conventional table approved by Michael on 2026-09-30.
The Robbins translation is in the public domain, as the University of Chicago LacusCurtius copyright page records. The transcriber's own notes and layout are not cited. · 2026-10-10
Limits of this lesson
The tightest aspect describes the relation closest to exact; it is a place to start observing and does not decide the theme of your life.
The orb figures are this app’s table: 8 degrees for conjunction and opposition, 6 for square and trine, 4 for sextile.
The demonstration figures are not a real person’s chart.
YOUR STUDY
Write what you learned in your own words.
Write down your tightest aspect, what each body means, and whether it fits you.
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