Showing results for photoelectric magnitude. Search instead for photoelectric cathode.

photoelectric magnitude

British

noun

astronomy the magnitude of a star determined using a photometer plus a filter to select light or other radiation of the desired wavelength

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023