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Frequently asked questions
Everything you need to know about the chart calculation, orders and your data.
Is the chart calculation free?
Yes, entirely, and with no sign-up. Only the full written PDF reading is paid for.
How accurate are the calculations?
Planetary positions are computed from reference astronomical models with arc-minute precision, the same as professional software. Houses are computed in Placidus and historical time zones are taken into account.
What happens if I don't know my time of birth?
The chart is computed for noon: the planets in signs are reliable (the Moon can sometimes change sign during the day), but the Ascendant and the houses are not shown. Your full birth certificate, free from the registry office, states the time.
Is my data kept?
No. The free chart is entirely contained in its web address; nothing is stored. For an order, the birth data and e-mail are kept for as long as it takes to produce and deliver the reading, then for accounting obligations.
Which house system is used, and can it be changed?
Placidus by default. Equal houses and whole signs are available by adding maisons=egales or maisons=signes-entiers to the chart's address.
Which planets and points are included?
Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, the true North Node, Chiron and Lilith (mean Black Moon), plus the Ascendant and the Midheaven.
How long does the full reading take to deliver?
Within 2 hours of payment, by e-mail, as a PDF, for every reading, including the couple chart.
How do I pay?
By bank card via Stripe. Online payment is being activated: ordering by e-mail triggers the sending of a secure payment link.
Can I order for someone else?
Yes: the gift chart and the baby chart are designed for that. You enter the person's birth data and, if you wish, your personal message.
Can an AI use the site?
Yes, it is even built for it: a chart is computed from a simple URL and the result is available as HTML, JSON or plain text. See the “For AI and developers” page.