Hpq

fast Fourier transform 469 feature masking 474

fiber-fed spectrograph 310 fiber-fed spectrograph images 318 field flooding 102, 104 field of view 77 filter matrix 537 finder scopes 92 finders big 92

flip-mirror systems 92 unity-power 92 FITS 57,59 Basic FITS 59 binary image data 60 header 59, 61 keyword 61 tailer 60 FITS variants 68

nonconforming data arrays 68 nonconforming headers 68 un-corrdinated header and data arrays 68 FK3 251 FK4 251 FK5 251

flat-field frame 125, 180 dome flats 184 light-box 184 sky flats 184 twilight flats 184 flats 186 flipping 331 floating 332 flopping 331 focus methods diffraction-spike 120 holes-in-a-mask 121 longest blooming trail 120 number of faint stars 120 peak pixel value 119 smallest star image 119 Fourier integral 458 Fourier series 456 Fourier transform inverse scaling 463 linearity 462 symmetry 462 Fourier, Jean Baptiste Joseph 455 Fraunhofer, Joseph 303 free spectral range 312 front-illuminated CCDs 18 full width halfmaximum 273

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