Interactive H–R Diagram Laboratory

Datastream Target

Rows requested

GitHub Pages uses browser-side CORS bridges. For large modes, this build requests Gaia in 10k pages instead of one giant CSV to avoid HTTP 413 payload failures.

Scientific Layers

Colour template Overlay template

Show Sun Region labels Luminosity axis

The Sun is plotted at BP–RP ≈ 0.82 and M_G ≈ 4.67. Templates change only the display layer; the Gaia rows remain unchanged.

ADQL Query

GPU Buffer Layout

positionsFloat32Array · x/y/z

hrFloat32Array · BP-RP/M_G

photometryFloat32Array · ra/dec/parallax/G/d

VIEWPORT2D H–R PLOT

ENGINEAWAITING DATA

BUFFEREMPTY

What am I seeing? Real Gaia stars arranged by colour and absolute brightness. The diagonal band is the main sequence; the Sun is marked for scale.

DATA PIPELINE

Ready to intercept Gaia geodesics

Choose a row count, then click initialize. The console reports route attempts, page number, parsing, speed and ETA.

STANDBY0%