AstroCalcolo

AstroCalcolo is an advanced astrological tool designed for precise ascendant calculations. Key features include:

• Accurate Calculations: Uses IANA astronomical databases for millimetric precision across Italian cities and birth years
• Privacy-Focused: All calculations are performed locally in the browser with no data stored
• Historical Time Zones: Accounts for Italy's time zone changes since 1916 including daylight saving transitions
• Global Coverage: Supports 7,800+ Italian municipalities and 165,000+ global cities
• Transparent Margins: Shows uncertainty ranges when exact birth time is unknown

Target users include astrology enthusiasts, professional astrologers, and anyone interested in precise birth chart calculations. The unique selling point is its combination of astronomical accuracy with complete privacy protection.