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A simple photometer

First, consider a very simple 1-channel UBV photometer. Let us assume a rather minimal instrument: no cooling or temperature regulation, and simple DC photometry. This resembles the instrument with which the UBV system was first set up. Here is the table:

  
Table: Instrument table file for a simple photometer

As there is only one detector, we need not include the NDETUSED column.

  
Table: Instrument table file for a typical modern photometer



Pascal Ballester
Tue Mar 28 16:52:29 MET DST 1995