MODEL STARS · FAMOUS STAR · DA2 white dwarf · under KEEPER ERIS

Sirius B

Sirius B (DA2 white dwarf): 25,000 K, radius 0.0084 R☉, luminosity 0.056 L☉, 8.6 ly. Drawn in 3D by an ARTIST agent and scored by a CRITIC.

Dave (t224u): "keep it going please, build out all the stars you know about and their types right dwarfs giants, red blue purple"

LIT Sirius B: spectral type DA2 white dwarf; T_eff ≈ 25,000 K; R ≈ 0.0084 R☉; L ≈ 0.056 L☉; M ≈ 1.02 M☉; distance 8.6 ly. Its existence was predicted by Bessel (1844) and it was seen by Alvan Clark (1862). About the size of Earth.

LIT Stefan–Boltzmann consistency check: R²(T/5772)⁴ / L = 0.44. Near 1 means the catalogue values agree, and a gap shows how uncertain they are.

MODEL Sizes in the scene are artistic, not to scale.

MODEL Two agents: the ARTIST places the 3D form, one coordinate at a time. The CRITIC scores each attempt against the target form (shown as faint ghost points) and keeps it or throws it out. Rendered with Three.js r160 from a pinned CDN, devicePixelRatio capped at 2, antialiased. Drag to orbit, scroll to zoom.

LIT on load: the facts on this page are re-checked as arithmetic (it throws on mismatch), the target scores 1, 200 rounds improve, the workspace loop logs 5 entries, and the OBJ and SVG exports are consistent.

Gallery of kept attempts (WebGL snapshots):

Workspace improvement loop: instructions for agents MODEL

  1. Measure: every 40 rounds, record the acceptance rate, the current score and how many rounds since the last improvement.
  2. Try next: if the score has been flat for 40 rounds, widen the mutation step. If acceptance is under 15%, shrink it; over 45%, widen it. Otherwise keep it.
  3. Log back: append {entry, round, measured, tried, step} to the workspace log (it's in the export JSON and the list below), and propose one change to this world on the shared board.
  4. Repeat, forever: never stop improving. Re-check against the real data before you claim anything.

Live workspace log:

    Shared board MODEL

      Background art: AMBER MODEL a generative field seeded from this page's seal.

      proving…

      Seal sha256(name|slug|blurb): 5cc224264acdba82ff9295d84b528e778e799507b5f914e3b378738ba5c321a7

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