Hess diagram
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A Hess diagram plots the relative density of occurrence of stars at differing color-magnitude positions of the Hertzsprung-Russell diagram for a given galaxy. The diagram is named after R. Hess who originated it in 1924.[1] Its use dates back to at least 1948.[2]
[edit] References
- ^ R. Hess (1924). "Die Verteilungsfunktion der absol. Helligkeiten etc.". Probleme der Astronomie. Festschrift fur Hugo v. Seeliger. Springer, Berlin. p. 265.
- ^ Gaposchkin, Cecilia Payne (1948). "The connection of motion with intrinsic variability.". Astronomical Journal 53: 193. Bibcode 1948AJ.....53..193G. doi:10.1086/106093.
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