AWhat changed
Using 24 extragalactic objects with distance estimates, analyzed individually and in nine groups, reports an approximately linear distance–radial velocity relation in the historical sample.
Scientific scope
Using 24 extragalactic objects with distance estimates, analyzed individually and in nine groups, reports an approximately linear distance–radial velocity relation in the historical sample. Scope limitation: The 24 objects and historical distance calibration have limitations. The value near 500 km/s/Mpc is not the modern constant. Hubble authored this paper; Humason’s velocity measurements and existing distance evidence remain acknowledged. Priority for cosmic-expansion theory requires separate primary sources.
Evidence
Assessment uses the catalogue-linked source evidence for the stated contribution. The 24 objects and historical distance calibration have limitations. The value near 500 km/s/Mpc is not the modern constant. Hubble authored this paper; Humason’s velocity measurements and existing distance evidence remain acknowledged. Priority for cosmic-expansion theory requires separate primary sources.
Contributors
- Edwin Hubble · SCIENCE: Named source contributor; exact labor shares are not measured.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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