Your Sky, The Moment That Mattered
Enter a date, time and place — we'll chart the real stars, constellations, planets and Moon exactly as they stood above the horizon. A free, personalized star map — and a beautiful star chart gift, ready to download in seconds.
Generate My Star Chart
Make it a keepsake
Order this exact chart as a beautifully framed print — just tell us on WhatsApp and we'll take it from there.
Chart ID: —
Data sources & accuracy
This chart is computed, not simulated — every star, planet and Moon position comes from real astronomical data for the exact date, time and place you enter.
- Sun, Moon & planet positions, sidereal time, Moon phase — Astronomy Engine by Don Cross (VSOP87/ELP2000-based), MIT License.
- Star catalogue & constellation figures — derived from the Hipparcos catalogue via the d3-celestial project by Olaf Frohn, BSD-3-Clause License. Positions are epoch J2000; precession over a few decades shifts stars by a fraction of a degree, negligible at chart scale.
- Place search & timezone lookup — Open-Meteo Geocoding API (free, open data).
Stars are plotted whenever they're above the horizon at that instant, whether or not daylight would have washed them out to the naked eye — this chart shows true celestial positions, the same convention used by planispheres and "the sky the night we met" prints.
Frequently Asked Questions
What is a custom star chart?
A custom star chart maps the real positions of stars, constellations, planets and the Moon exactly as they appeared from a specific place at a specific date and time — for example, the sky the night you were born, met someone, or got married.
Is this star chart generator really free?
Yes. Generating, previewing and downloading a high-resolution PNG or PDF of your personalized star chart is completely free — no account or payment required. We only ask for an email address to deliver the download and a re-open link.
How accurate is the star chart?
Star, planet and Moon positions are computed from real astronomical data — a Hipparcos-derived star catalogue and the Astronomy Engine ephemeris library — for the exact date, time, timezone and coordinates you provide, not a simulated or randomly generated image.
Can I turn my star chart into a gift?
Yes. After downloading your free star chart, you can order the exact same design as a framed print via WhatsApp — a popular personalized star chart gift for anniversaries, weddings, birthdays and new babies.