Natal chart calculator with a plain-language reading

A natal chart shows where the Sun, Moon and planets stood at the moment you were born. AstroWhisper calculates it from NASA data and explains it in plain words, without heavy jargon.

Updated: 2026-11-15 · Calculated with NASA ephemerides (JPL DE440s)

Open my sky

What a natal chart is

A natal chart is a map of the sky for one place and one moment: your birth date, time and city. It marks the positions of ten celestial bodies, the zodiac signs, the houses and the angles between planets, which astrologers call aspects.

Two people with the same sun sign can have very different charts, because their Moon, Venus, Mars and ascendant sit differently. That is why a chart reading is more precise than a sun sign reading.

What you need

Three things: birth date, birth time and city. The time sets the ascendant and the houses, which change roughly every four minutes. The city gives the time zone and coordinates.

If you do not have a time, the bot builds the chart without it and says clearly what stays unknown. You can then try to find the time from events in your life.

How AstroWhisper calculates it

Planet positions come from the NASA JPL DE440s ephemerides and are computed with the Skyfield library. The results were checked against JPL Horizons. The bot does not guess positions or retell templates: the text is built from your calculation.

What you get in the bot

The About me section describes your character, strengths and important periods. The Natal chart section shows the positions and aspects themselves. All of it is free and available in English.

Frequently asked questions

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