S

sample 35 saturated 21 saturation 541

sawtooth transfer function 353 scaling 328, 357 shot noise 43

Sigma, as radius of star image 273

signal bias 41

signal-to-noise ratio 37

significance image 490

significant signal 486

Skiff, Brian 292

sky atlas software 93

Sky Catalog 2000.0 251

sky flats 186

sky-limited image 48

slit spectrograph 309

slit spectrograph images 316 Smithsonian Astrophysical Observatory

Catalog (SAO) 251 SNR 37

Sobel operators 386 solar-system targets Jovian Satellites 152 Jupiter 152 Lunar Imaging 154 Mars 151 Mercury 151 Moon 154 Neptune 154 Saturn 154 Sun 155 Uranus 154 Venus 151 spatial filters 377 spatial frequency 453 spatially encoded 572 spectral resolution 312 spectral sensitivity 83 spectroscopy 225 spectrum analysis 319 calibration 319 image properties 311 standard coordinates 253 standard deviation 35, 209, 214 stellar parallax 268 stretch scaling 356 support frames 165 synchrotron emission 518

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