{
  "profile": "wrs-source-table-example-1",
  "title": "Five selected rows from Hubble's 1929 Table 1",
  "source_url": "https://web.uvic.ca/~jwillis/teaching/astr405/reading/red_dist_Hubble_orig.pdf",
  "source_doi": "10.1073/pnas.15.3.168",
  "locator": "Table 1, printed p. 169; PDF page 3 in the linked seven-page scan",
  "distance_unit": "Mpc (million parsecs), historical estimates",
  "velocity_unit": "km/s, velocities printed in Table 1",
  "rows": [
    {"object": "NGC 6822", "distance": 0.214, "velocity": -130},
    {"object": "NGC 224", "distance": 0.275, "velocity": -220},
    {"object": "NGC 5457", "distance": 0.45, "velocity": 200},
    {"object": "NGC 1068", "distance": 1.0, "velocity": 920},
    {"object": "NGC 4649", "distance": 2.0, "velocity": 1090}
  ],
  "caption": "These five named objects are a small selection from Hubble's 1929 Table 1, not the complete dataset or a modern measurement of cosmic expansion. Distance uses the paper's historical estimates in millions of parsecs; velocity uses the table's values in kilometers per second. Two negative velocities remain visible: nearby objects need not follow a simple outward-motion story. The paper's Figure 1 applies a solar-motion correction, so these raw table values should not be presented as that figure. No line is fitted here. Distance calibration, selection and corrections matter before a slope can be interpreted scientifically.",
  "scope": "Maintainer transcription and reading example. Five rows of twenty-four; no fitted law, uncertainty estimate or new scientific assessment.",
  "next_step": "Check these rows against the scan, or transcribe the remaining nineteen with exact row names, units and correction status."
}