20LY ist ein persönliches Projekt, an dem ich den ganzen Oktober über gearbeitet habe. Es handelt sich um einen leichten 3D-Atlas nahegelegener Sterne, den Sie im Browser auf Mobilgeräten oder Desktops durchfliegen können
🔗 https://20ly.kierankelly.net
Funktionen: 3D-Erkundung, Sterninformationen, Sternfilter, Sternsuche (Spektraltyp/Entfernung/Exoplaneten)
Quellen: handverlesen aus Wikipedia + anderen Referenzen zur Astronomie (mehr in den Kommentaren).
Feedback ist sehr willkommen! Dies ist nur ein Hobbyprojekt, daher wären alle Ideenvorschläge sehr hilfreich
Prost!
https://20ly.kierankelly.net
1 Kommentar
**Data Sources:**
* Wikipedia Page and sub pages: [https://en.wikipedia.org/wiki/List_of_nearest_stars](https://en.wikipedia.org/wiki/List_of_nearest_stars)
* SIMBAD: [https://simbad.u-strasbg.fr/simbad/](https://simbad.u-strasbg.fr/simbad/)
* NASA Exoplanet Archive: [https://exoplanetarchive.ipac.caltech.edu/](https://exoplanetarchive.ipac.caltech.edu/)
* Gaia DR3 : [https://gea.esac.esa.int/archive/](https://gea.esac.esa.int/archive/)
**How it works:**
* Collected Star Data (name/aliases, spectral type, distance, exoplanet flags).
* Converted RA/Dec + Distance (in Light Years) to Cartesian coordinates XYZ
* Rendered in Three.js; by spectral class; distances kept roughly to scale.
* Plotted nearest-neighbour routes (stars link with up to three neighbours)
* Also added alternate Grid views, and Star Stalks
* There is a search funtion and the camera can be focussed on selected star and zoomed to
**Some Issues:**
* A few distances/names differ across sources; I just went with Wikipedia
* Exoplanet statuses change fairly often, the data might not be the latest
* Dataset capped to 20LY for now.
**Roadmap / Ideas:**
* System view including habitable zone and exoplanets
* Textured planets and stars
* Constellation lines
* Galactic Background
* Proper-motion trails
* PNG and SVG Export
* CSV/JSON export.