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Galactic Coordinate Transforms 3D Explorer vs alternatives
The Galactic Coordinate Transforms 3D Explorer overlays all three reference planes and animates real precession in the browser - planetarium software wins for a live night sky; astronomy textbooks win for the full mathematical derivation.
| Option | Strength | Access | Trade-off |
|---|---|---|---|
| Galactic Coordinate Transforms 3D (this page) | Three planes overlaid, real precession-cone animation, named pole-star eras | Free, in browser | Teaching approximation; no live star catalog |
| Planetarium software (e.g. Stellarium) | Live night sky for any date and location | Free/paid | No dedicated precession-cycle scrub or plane-tilt teaching view |
| Astronomy textbooks | Full mathematical derivation of precession | Free/paid, education-focused | No interactive 3D scene |
Key published figures
| Figure | Value |
|---|---|
| Obliquity (equatorial-to-ecliptic) | 23.4393 degrees |
| Galactic plane to ecliptic | about 60.2 degrees |
| Precession period (modern) | about 25,772 years |
| Sun's distance from galactic center | about 26,000 light-years |
Start with the step-by-step guide or when to use. Open the Galactic Coordinate Transforms 3D Explorer.
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