Cazimi is a traditional term for a planet extremely close to the Sun. This calculator uses the strict 17-arcminute threshold for cazimi, then separates the broader 1-degree heart-of-Sun band and the 17-degree under-the-beams band. Many traditional authors read the tight condition as fortifying, but the meaning still depends on the planet, chart context, and interpretive tradition.

In the heart of the Sun is the literal sense of the word cazimi, from the Arabic phrase for a planet seated in the Sun's center. In its strictest traditional use it means within about 17 arcminutes of the Sun, the point where the planet is read as fortified rather than burned. Some authors keep a looser one-degree heart-of-Sun band around that exact contact.

This calculator keeps the two tiers apart so you can see which one you actually have. A planet inside 17 arcminutes is strict cazimi, the image traditional writers describe as the planet sitting with the king in his chamber. A planet past 17 arcminutes but still inside one degree sits in the broader heart-of-Sun band: extremely close, clearly distinct from the wider under-the-beams range, yet outside the tightest fortifying orb. Your result label tells you which tier a planet falls in.

A planet is under the beams when it sits within roughly 15 to 17 degrees of the Sun, close enough that its light is lost in the glare and it cannot be seen in the sky. Traditional doctrine reads its significations as obscured, internalized, or weakened, short of the sharper damage of combustion closer in.

Because the band is wide, some bodies fall under the beams often and others almost never. Mercury and Venus stay close to the Sun by orbit, so they are under the beams in a large share of charts. Mars, Jupiter, and Saturn reach it only around their yearly conjunction with the Sun, which makes an under-the-beams outer planet less common and worth noting when you see it.

The condition is a weakening, and a mild one. The main thing that lifts it is dignity: a planet in its own domicile, exaltation, or bounds keeps its footing even while hidden in the Sun's light, so check the sign and degree before you read it as simply buried. A planet climbing back out of the beams into first visibility is making its heliacal rising, which traditional practice treats as a return to strength.

Authors disagree on the exact limit. Many use 15 degrees, William Lilly and a number of later writers extend it to 17, and some early texts use 12. This calculator marks under the beams through 17 degrees because that matches the threshold shared with Augurine's combustion and solar-condition code, so the band here sits on the wider end.

Suppose the Sun sits at 15 degrees 00 arcminutes Aries and Mercury at 15 degrees 10 arcminutes Aries. The angular separation is 10 arcminutes, which falls inside the 17-arcminute cazimi orb. Mercury is therefore cazimi. If Mercury were instead at 15 degrees 30 arcminutes Aries, the orb would be 30 arcminutes: outside cazimi, inside the heart of the Sun (1 degree band), and well inside the under-the-beams range. The calculator above runs this comparison for every body in your chart.

Cazimi frequency tracks the synodic cycle of each body with the Sun, so the cazimi window is brief for every body. Inner-planet cazimis happen several times per year, while the slower planets usually have one Sun conjunction per year from a geocentric perspective. The Calendar tab shows detected upcoming dates from the current and following calendar year. For per-body dates, see the planet pages linked below.

Public reference works define cazimi as a very close Sun conjunction, most often within 17 arcminutes of the Sun's longitude, though some sources preserve wider heart-of-Sun usage. This page keeps those thresholds separate: cazimi means 17 arcminutes or less, heart of the Sun means more than 17 arcminutes through 1 degree, and under the beams means more than 1 degree through 17 degrees.

Under-the-beams limits vary by author. This calculator uses 17 degrees because that is the local threshold shared with Augurine's combustion and solar-condition code, while noting that many historical texts use 15 degrees or another nearby value.

Natal positions come from Augurine's chart API. The calendar endpoint samples each supported body once per day at noon UTC, detects dates when the body is within 17 arcminutes of the Sun, and reports the closest daily sample for that window. It is a date-level event feed, not an exact start-time or peak-time electional calendar. If you are choosing a start window, pair the cazimi date with the void-of-course Moon calendar before treating it as usable electional timing.

Looking for upcoming cazimi dates for a specific planet? Each per-planet page lists detected upcoming dates with sign, degree, and daily-sample orb.

• Uranus cazimi dates
• Jupiter cazimi dates
• Venus cazimi dates
• Mercury cazimi dates

This calculator is built for a Hellenistic and modern tropical workflow. Classical Jyotish handles planets close to the Sun through combustion (asta) with its own orbs and interpretive rules. If you practice Vedic astrology, treat this page as a solar-proximity reference rather than a Jyotish condition calculator, and use the sidereal chart calculator for Lahiri positions when you need them.