Distribution of Luminosity in Elliptical Nebulae [Secondarily title Luminosity Distribution in Elliptical Nebulae] (Hubble, pp. 231-276) WITH The Spectrohelioscope and its Work (Hale, pp. 73-101) in The Astrophysical Journal, LXXI 71, 1930
Chicago: University of Chicago, 1930. 1st Edition. FIRST EDITION OF HUBBLE’S FORMULATION OF A LAW (NOW KNOWN AS THE HUBBLE-REYNOLDS LAW) THAT GIVES THE OBSERVED SURFACE BRIGHTNESS PROFILE OF ELLIPTICAL GALAXIES AS A FUNCTION OF PROJECTED RADIAL DISTANCE. HUBBLE: The law was first formulated by John Henry Reynolds in 1913..... More