Gajakesari yoga check: Jupiter, the Moon and what makes it count

Last updated 25 October 2026

Enter your birth details to see whether Jupiter is angular to your Moon, the rule behind Gajakesari yoga, with the conditions that strengthen or weaken it and three other Moon-based yogas. Below: the method, each reading, and why an astrologer looks past the bare rule.

How the calculation works

You give the date, clock time and place of birth, either a listed city or a latitude and longitude, with the UTC offset in force there. From these the calculator finds the seven classical planets in the sidereal zodiac (Lahiri ayanamsa) and the sign rising at that spot. Counting is by whole signs: the Moon's own sign is house one from the Moon, the sign after it house two. None of the four yogas uses Rahu or Ketu.

For Gajakesari it asks one question from two starting points. Does Jupiter sit in an angle (kendra) counted from the Moon? Does it sit in an angle counted from the Lagna? Each answer is its own row in the result. It then lists, without applying them, the conditions the classical verse attaches to the yoga: whether Jupiter is in Makar, its sign of debilitation; whether it is in a sign ruled by Mercury or Venus (Vrishabh, Mithun, Kanya, Tula), which tradition counts as enemy territory for Jupiter; how far it is from the Sun, which bears on combustion; and which planets share its sign or aspect it by whole-sign aspect.

Because the time is required, the result also warns you if the Lagna changes sign within a few minutes of your time, or if a planet sits so close to the edge of its sign that a small error would change a yoga, and it says which.

The four yogas in the result

Each yoga appears in the result table with every reading the texts or later books give for it, so you can see exactly which version your chart meets.

Gajakesari

An angular Jupiter counted from the Moon is the reading nearly everyone means. The Lagna reading comes from the same verse. The verse's extra conditions, benefic support and freedom from debilitation, combustion and enemy signs, are shown underneath the table as facts rather than folded into a yes or no.

Budhaditya

Mercury sharing a sign with the Sun. Since Mercury always stays close to the Sun, this is a frequent combination. A second row drops the cases where Mercury is combust, defined here as within 14° of the Sun (12° when Mercury is retrograde), because many astrologers hold that a Mercury overpowered by the Sun's glare cannot give the yoga's results.

Kemadruma

The reverse of Gajakesari's support for the Moon: both signs flanking the Moon are empty of planets, the Sun apart. A stricter row also requires the Moon's own sign to be empty. Two further rows show the cancellation readings: any planet angular to the Lagna, which the verse itself adds, or angular to the Moon, which later books add. Kemadruma is the yoga most often used to alarm clients; a careful astrologer checks the cancellations and the Moon's overall strength before saying anything about it.

Chandra-Mangal

Mars and the Moon together in one sign, traditionally linked with drive and enterprise. A separate row shows the looser reading in which the two face each other from the 7th and so aspect one another.

Why a common yoga needs a closer look

If one chart in three has Gajakesari by the bare rule, the yoga cannot by itself mark anyone out. Practitioners know this, and a reading that announces “you have Gajakesari yoga” and stops there has told you very little. What a careful astrologer looks at instead is the quality of the combination.

• Jupiter's condition. A Jupiter that is weak by sign, too near the Sun or in a sign its enemies rule is said to struggle to deliver. Dignified by sign, or well supported, it is read as far more capable.
• The Moon's condition. The yoga is built on the Moon, so a strong, bright Moon matters. Many astrologers look at the phase (a waxing Moon well away from the Sun is generally preferred) and at any affliction to the Moon.
• The houses from the Lagna. Jupiter in the 7th from the Moon may fall in the 10th from the Lagna in one chart and in the 6th in another, and the two are read very differently.
• Timing. A yoga gives its results mainly in the periods of the planets that form it. A Gajakesari is likely to be discussed in terms of Jupiter's and the Moon's dashas, which our Vimshottari dasha calculator sets out.

The same applies, in reverse, to Kemadruma. A planet in a kendra, a strong Moon or a supportive dasha changes how it is read, and no single combination should be presented as fate.

Jupiter's qualifying signs for each Moon sign

Whatever the Moon sign, four placements of Jupiter give the basic yoga: alongside the Moon, or three, six or nine signs further on. Jupiter spends about a year in each sign, so people born in the same year usually share its sign; whether each of them has the yoga then depends on where their own Moon was.

Questions to ask your astrologer about Gajakesari

• Is my Jupiter in good enough condition for this yoga to mean much?
• Which starting point do you use for this yoga, the Moon or the rising sign?
• How strong is my Moon, and does its phase change your view?
• In which dasha periods would you expect this combination to show?
• The result also shows Kemadruma or Budhaditya for me. How do these sit together in your reading?

For more on asking questions that get specific answers, see questions to ask an astrologer.