OwnStarMap recreates the exact night sky from any date, time, and location using 8,921 real stars from the HYG v4.2 catalog (ESA Hipparcos data) and 88 IAU constellations. What makes it different: - Scientifically accurate, verified by 238 automated tests - From €12 (competitors charge $40+) - 11 styles, 15 fonts, free real-time preview - 8 languages - Unique: explore the sky of 35 historical events (Moon Landing, D-Day...) Built by an astronomy enthusiast in Normandy, France.