HTML pages for local star charts and equatorial star charts.
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Oct 18, 2025 - JavaScript
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sidereal
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This project is a Node.js wrapper for Swiss Ephemeris (Swisseph) – a high-precision astronomical and astrological calculation engine developed by Astrodienst. Powered by NASA’s JPL DE data, Swiss Ephemeris delivers extremely accurate planetary positions, house systems, nakshatras, tithis, yoga, eclipses, and other essential components for astrology
swisseph astrology jyotish horoscope sidereal tropical vedic-astrology vinaayak drvinaayaksingh planetary-positions
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Jun 20, 2025 - C++
Astronomical space coordinate and time conversion. Calculate Julian day, local sidereal time and ecliptic obliquity with great precision.
swift astronomy carthage conversion equatorial swift-3 coordinate sidereal julian-date sidereal-time
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Jan 3, 2018 - Swift
SPA Sun Position Calc Library for PHP
php algorithm spa longitude degrees solar-position-algorithms solar-radiation-applications azimuth-angles sidereal
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Sep 15, 2025 - PHP
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