Method & privacy

How the chart is calculated

We use a sidereal zodiac with the Lahiri offset, whole-sign houses and mean lunar nodes. Local birth times are converted using the historical time zone of the selected city. Planetary longitudes are interpolated from daily Swiss Ephemeris positions.

How to read the chapters

The natal chart sets the theme. In the relevant chapter we check the house ruler, other planets in that house, aspects and a finer division. The career chapter uses the Dashamsha (D10), home uses the Chaturthamsha (D4), and partnership uses the Navamsha (D9). A time remembered approximately can shift the finer houses, so their interpretation is omitted for approximate times.

Vimshottari periods begin with the Moon’s position at birth. The timeline uses a 365.25-day year. Its heights indicate how many links the period rulers have to a topic. Use them to explore symbolic themes. The six-axis diagram counts the seven classical planets by house.

Reading two charts

Synastry compares both directions. Someone’s Moon can fall in a different area of the other person’s chart than the reverse. The report considers lunar signs, house overlays, whole-sign contacts and each person’s current period. These are traditional interpretations for reflection. Real decisions belong to the people involved.

Your data

Chart calculations run in this browser. A reading can be reopened within the same tab. Profiles persist on this device when you choose to save them. Remove a profile in Profiles or clear this site’s browser data to erase local records. Other devices have their own libraries.

We count visits and completed personal readings. The counter stores daily totals by language and action. Your name, birth details and chart are never included in those totals. A tab remembers which actions it has counted. Opening a new tab can count again.

Moon imagery courtesy of NASA’s Scientific Visualization Studio.

Further reading

P. V. R. Narasimha Rao, Vedic Astrology: An Integrated Approach ↗