Kundali Yoga · The union of Mercury and the Sun
Budha-Aditya Yoga
Also written Budhaditya Yoga, Budh Aditya Yoga, Budha Aditya Yog, Buddhaditya Yoga
Budha-Aditya Yoga forms when the Sun and Mercury occupy the same sign, whatever the house. Mercury never strays more than about 28 degrees from the Sun, so the two share a sign in a large share of all charts — often more than half. It is one of the most common yogas in any kundali, and its presence alone says little.
Budha-Aditya Yoga in the sky today
Planets at sunrise for the reference place, checked against all twelve ascendants with the same rule a chart is checked against.
Checking…
- Sun—
- Mercury—
Sun and Mercury together — how strong each is in every sign
Every row below was produced by running the chart engine itself over each placement, so it is exactly the rule a chart on this site is checked against.
| Sign | Sun | Mercury |
|---|---|---|
| Aries | exalted | neutral |
| Taurus | enemy’s sign | friend’s sign |
| Gemini | neutral | own sign |
| Cancer | friend’s sign | enemy’s sign |
| Leo | moolatrikona | friend’s sign |
| Virgo | neutral | exalted |
| Libra | debilitated | friend’s sign |
| Scorpio | friend’s sign | neutral |
| Sagittarius | friend’s sign | neutral |
| Capricorn | enemy’s sign | neutral |
| Aquarius | enemy’s sign | neutral |
| Pisces | friend’s sign | debilitated |
The yoga forms whenever Sun and Mercury share a sign; the dignity of each changes what it is classically thought to deliver.
What Budha-Aditya Yoga is associated with
Aditya is the Sun and Budha is Mercury, so the yoga joins the planet of authority with the planet of intellect and speech. It is classically associated with a sharp, practical mind, skill with words and numbers, and an aptitude for administration, accounts, teaching or writing. Texts describe the native as clever and capable of earning recognition for their intelligence. The house in which the two sit is read as the area of life where that ability is most used — the 10th for career, the 2nd for speech and earnings, and so on.
What weakens it, and what this site checks
The main qualification in classical reading is combustion: Mercury very close to the Sun — commonly given as within about 14 degrees, or 12 when retrograde — is said to be "burnt" and to lose much of its independent strength. Many astrologers therefore treat the yoga as meaningful only when Mercury is some distance from the Sun, and stronger still in a good sign such as Virgo or Gemini. Our engine checks only that both planets are in the same sign. It does not measure the distance between them, check combustion, or weigh the sign or house.
Other yogas
FAQ
Budha-Aditya Yoga — common questions
Why is Budha-Aditya yoga so common?
Because Mercury orbits close to the Sun and, seen from Earth, never moves more than about 28 degrees away from it. The two land in the same sign in a large share of charts, so the yoga is ordinary rather than special.
Is Budha-Aditya yoga cancelled if Mercury is combust?
Classical texts treat a combust Mercury as weakened rather than formally cancelling the yoga, and many astrologers discount it when Mercury is within roughly 14 degrees of the Sun. Our chart lists the yoga whenever the two share a sign, so check the degree gap yourself.
How do I know if I have Budha-Aditya yoga?
Look at whether the Sun and Mercury are in the same sign of your birth chart. If they are, the yoga is present, and the degree gap tells you how combust Mercury is. The free kundli at /free-kundli shows both positions to the degree.