Henry Norris Russell

Assembled from 19 blocks · 2 evidence · 12 related

1. Story
2. American astronomer who in 1913 plotted absolute magnitude against spectral class and produced, independently of Hertzsprung, the diagram that carries both their names. He appears twice in this Journey and not flatteringly the second time: his standing was such that the plot was initially called the Russell diagram, and it was his objection that led Cecilia Payne to disclaim her own hydrogen result in 1925 - a conclusion he reached himself by another route four years later and then credited. He is a useful reminder that authority in a field is a real force acting on what gets published, distinct from the evidence. Not a place.
3. Knowledge
4. Henry Norris Russell
5. Payne concludes that stars are mostly hydrogen - and disclaims it
6. Connections
7. Hertzsprung-Russell diagram
8. Payne concludes that stars are mostly hydrogen - and disclaims it
9. Hertzsprung and Russell independently plot luminosity against temperature
10. Payne concludes that stars are mostly hydrogen - and disclaims it
11. Cecilia Payne-Gaposchkin
12. Henry Norris Russell
13. The Sun
14. Cecilia Payne-Gaposchkin
15. Henry Norris Russell
16. Hydrogen fusion: the proton-proton chain and the CNO cycle
17. Evidence
18. Supports the description of the main sequence as a mass-ordered band and the 1911/1913 attribution and naming history of the Hertzsprung-Russell diagram. Institutional educational material, read via search summary rather than fetched; not a substitute for the original Hertzsprung and Russell publications.
19. Applies Saha ionisation theory to stellar spectra and derives overwhelming hydrogen and helium abundances, with the conclusion disclaimed in the submitted text. The thesis was not consulted; the account, including the "almost certainly not real" wording and Russell's intervention, is taken from Harvard Wolbach Library and American Physical Society summaries read via search. The monograph number should be checked before publication.