OAC's staff 
                has a long time experience in stellar photoelectric photometry. 
                Photoelectric photometry is an important tool in order to get 
                high precision photometry, which is needed in various fields of 
                astronomy and astrophysics. 
                Photoelectric photometry is performed by means of a device named 
                photoelectric photometer. 
                At OAC we use three different photoelectric photometers: 
             
            
            
              -  
                
IRF's
optical photoelectric photometer Optec SSP-5A (with Hamamatsu R6358 low
noise red-extended photomultiplier tube); it is a direct current
photoelectric photometer with voltage to frequency converter  
               
              - 
                
OAC's optical photoelectric photometer Optec SSP-5A (with Hamamatsu
R6358 low noise red-extended photomultiplier tube); it is a direct
current photoelectric photometer with voltage to frequency converter  
               
              -  
                
OAC's near-infrared 
                  photoelectric photometer Optec SSP-4 (with Hamamatsu G5851-21 
                  InGaAs-PIN photodiode) 
               
             
            For details 
              and info about OAC's photometers and the photometric filters used, 
              please see the link "Opto-electronic 
              Instrumentation". 
              
            By clicking 
              the following links you can reach some subpages involving activities 
              about photoelectric photometry made at OAC. 
               
            DETERMINING EXTINCTION COEFFICIENTS 
            CALIBRATING UBVR PHOTOMETRY 
            PHOTOELECTRIC PHOTOMETRY OF VARIABLE STARS  |