Day 27: First Experiment with Star Maps

Day 27: First star globe from HYG (mag < 8). D3 + Versor. Seed for the Day 57 IIB longlist. #100DayMapChallenge.
Day 27: Star globe from HYG database - #100DayMapChallenge

Day 27. First experiment with star maps 🌌

This is where it started: a simple globe built from the HYG star database. Each point represents a star, sized by perceived brightness. I limited the dataset to stars brighter than magnitude 8 to preserve legibility and avoid overwhelming the spatial structure.

The technical approach was intentionally minimal. D3 handled data processing and coordinate transformation, Versor managed the rotation, and rendering stayed lightweight. No atmospheric effects, no cinematic transitions. Just celestial coordinates plotted on a sphere, with size reflecting how bright each star appears from Earth.

It was one of my first attempts at exploring spatial visualization beyond geography. Not continents and borders, but constellations and magnitude scales. It raised a different kind of question: how do we represent distance and scale when reference points are measured in light-years?

The project was basic, but it stayed with me. I kept returning to the idea, gradually adding motion, sound, and more deliberate camera paths. That later version was longlisted at the Information is Beautiful Awards. You’ll see it on Day 57.

Sometimes an early technical constraint becomes the foundation for deeper work later.

Live demo: Relationships / space (star globe)

The project

PieceRole
DataHYG, magnitude brighter than 8
StackD3 processing + Versor rotation
ScopeMinimal: no atmosphere, no cinematic FX
LaterDay 57 Information is Beautiful longlist

Note

Live date 7 March 2026, 16:05 Romania (14:05 UTC). Draft header said Mar 8.

How to follow


#100DayMapChallenge · Day 27/100 · LinkedIn

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