About

This site exists for one job — a jathakam chart that gives a clear answer quickly and shows how it was reached.

How the tool is checked

Every release of the jathakam chart is checked by an automated test suite of 105 checks in a real browser — normal values, edge cases and invalid input — and on desktop and phone screen sizes before it goes live.

References

Explanations are based on primary sources and recognised references, which are linked in the text (for example ssd.jpl.nasa.gov, en.wikipedia.org).

Editorial principles

The editorial team writes for one reader: someone who needs a reliable answer now. That means worked examples, units spelled out, honest limits and no sponsored recommendations.

Found a mistake?

First published October 8, 2026; last updated October 12, 2026. If you spot an error or a case the tool handles badly, please tell us through the contact page — corrections are reviewed and published in the next update.

Funding

The tool is free to use. The site is funded by advertising, which never influences results or explanations.

— Jathakam Chart editorial team