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Дата изменения: Mon Dec 23 18:23:59 2013
Дата индексирования: Fri Feb 28 16:50:38 2014
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HyperLEDA documentation: parameter: lc

Luminosity class of galaxies: lc

The luminosity class introduced by Van den Bergh (1960) has been numerically coded between 1 and 9 with the extension introduced by H.G. Corwin (SGC, 1985) between 9 and 11.
The luminosity class is coded on a continuous scale which is related to the original classification as:

The original nomenclature was chosen to match the Yerkes system of stellar luminosities.
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