Every amateur astronomer knows the frustration: you’re designing a custom telescope or planning an observation session, and you need precise calculations for focal ratios, mirror curves, or mount positioning. Complex optical formulas and celestial mechanics shouldn’t require expensive software or PhD-level mathematics to access.
This comprehensive JavaScript toolkit delivers essential astronomical calculations directly in your browser, covering the full spectrum from telescope construction to observation planning. Whether you’re computing parabolic mirror specifications, calculating optimal eyepiece combinations, determining precise object coordinates, or programming telescope control systems, these calculators handle the mathematical heavy lifting. The browser-based approach means instant access without installations, perfect for field work or quick design iterations.
Developed by Mel Bartels, a renowned telescope maker and astronomer, this collection represents decades of practical experience distilled into accessible tools. Amateur telescope makers rely on these calculators for mirror grinding projects, while observatory operators use them for mount control and observation planning. The open-source JavaScript foundation makes it easy to integrate into larger projects or customize for specific research applications.
⭐ Stars: 12
💻 Language: JavaScript
🔗 Repository: MelBartels/AstronomyCalculatorsJavaScript