Does your chart really contain a Yod, kite or T-square? Enter your birth details to check five aspect patterns. Every match includes the planets, their actual angles and the margin allowed for each aspect.
This is a geometry check, not a prediction. A familiar-looking shape on a chart wheel may fail one of the required angles.
Which shapes does it check?
A grand trine needs three trines, each near 120°. A T-square needs an opposition near 180° and two squares near 90°, both meeting at the same apex planet.
A Yod needs a sextile near 60° at its base and two quincunxes near 150° meeting at one apex. A kite contains a grand trine plus a fourth planet opposite one triangle vertex and sextile the other two. A grand cross needs two oppositions and four squares.
Why the margins matter
An orb is the distance from an exact aspect. A 148.5° separation is 1.5° from an exact 150° quincunx. Each required connection must pass its own limit; a shape is not accepted just because most of its lines look right.
Our default settings allow 5° for trines, squares and oppositions, 3° for sextiles and 2° for quincunxes. The tight setting uses 2° for every aspect. These are transparent calculator choices, not universal rules. Different astrologers may use other margins.
What is included?
The checker uses the Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. It leaves out Chiron, asteroids, lunar nodes, Lilith and chart angles. A configuration involving those points may be interesting to study, but it will not count here.
The test uses the shorter angular distance between planetary longitudes, including across 0° Aries. Houses and zodiac sign boundaries do not decide whether the geometry passes. Smaller patterns inside a larger one are shown too: a grand cross can contain several T-squares.
Can I use an unknown birth time?
Yes, but PlainAstro uses local noon when you leave the time blank. The Moon moves enough during a day to change a close match. Treat Moon-related patterns as provisional until you have an accurate time.
A result does not prove a special destiny, a guaranteed talent or a future event. Use the angles to check the configuration first, then study its planets in the context of the rest of the chart.
Plain advice
Start with one result and inspect every row in its angle table. Try the tight setting to see whether the pattern still qualifies. If no pattern appears, your chart can still contain many meaningful individual aspects.
Questions people ask
Why does another calculator show a different result?
It may use different orbs or include points such as Chiron, the nodes or angles. Compare the included bodies and each required angle before comparing labels.
Does one quincunx make a Yod?
No. A Yod requires two quincunxes to the same apex and a sextile joining the two base planets.
Does no matching pattern mean anything is missing?
No. It only means these five shapes do not meet every angle requirement under the selected settings.