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Date: Mon, 12 Apr 93 19:49:16 GMT From: gav@astro.as.utexas.edu (Gerard de Vaucouleurs) Subject: Magnitude corrections Dear Dr. Richmond: Thank you for your quick rectification. We all make mistakes (being older I have made many more than you have yet!). Please double check all your numbers and reductions ASAP and circulate the corrected numbers. Also are you correcting your data for color equation, are are these magnitudes still in the natural system of your CCD? Eventually, we will need all observations whether visual, photo- electric, or CCD to be properly reduced to the UBVRI... systems. Best regards, G. de Vaucouleurs (gav@astro.as.utexas.edu)
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