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]
 Hess diagram with data from SDSS b>80 degree |
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. doi:. http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1948AJ.....53..193G.
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