Index
233
Feedhorn, 208
FFT filters, 144
Fiber-Fed Multi-Object Spectrographs, 200
Field curvature, 37, 41
Field of View (FOV), 24
Field stop, 24
Filaments, 187
Filtering, 143
Filters, 15–17
Filter transformations, 20
Finder charts, 104
First contact, 193
First light, 103
First point of Aries, 57, 59
FIT liberator, 136
FITS header, 148
FITS Liberator, 88
Flamsteed catalogue, 66
Flares, 187
Flat field, 79
Flat fielding, 91
Flat field noise, 81
Flat frames, 85, 90
Flexible Image Transport System (FITS), 83
FlipMirror, 35
Flux, 13
Flux density, 16
Flux tube, 215
Focal length, 24
Focal reducer, 35
Focusing, 110
Forbidden line, 18
Forward gain, 207
Fourth contact, 193
Free-bound emission, 12
Free electrons, 12
Frequency, 11
Fringes, 87
Full Width Half Maximum (FWHM), 112,
146
Fundamental plane, 54
G
Gaia, 218
Gaia archive, 68
Gain, 79, 97
Galactic centre, 58
Galactic Coordinate System, 58
Galactic pole, 59
Galaxies, 120
Galilean, 25
Galilean eyepiece, 33
Galileo Galilei, 25
Gaussian, 37, 146
Gaussian distribution, 163
General Catalogue of Variable Stars
(GCVS), 71
German equatorial, 29
Gimp, The, 135
Global Positioning System (GPS), 31, 54
Globular clusters, 118
GoTo mounts, 29
GoTo telescopes, 31
Granules, 185
Great circle, 53, 58
Greenwich Mean Time (GMT), 46
Gregorian Calendar, 46, 48
Grism, 198
Guiding, 113
H
H-α, 12
H-α filters, 18
Henry Draper catalogue, 71
Herschel William, 9
Hershel wedges, 189
Hertz Heinrich, 11
Hertzsprung–Russell (HR) diagram, 21
High pass filter, 143
Hipparchus, 14
Hipparcos catalogue, 69
Homing, 110
Hooke Robert, 46
Hot pixel, 136
Hour angle, 58
Hour circle, 58
Hubble Guide Star Catalogue (GSC), 70
Hubble Space Telescope (HST), 28, 39
Huygens Christiaan, 46
Huygens eyepiece, 33
Hydrogen alpha filters, 190
Hydrogen alpha line, 184
Hydrostatic Equilibrium, 183
I
IC Catalogue, 71
Image processing, 136
Image reduction, 135
Impedance, 207
Infrared Science Archive (IRSA), 74
Inline transmission gratings, 200
Instrumental flux, 14
Integral field units, 200
Interferometry, 206
233
Feedhorn, 208
FFT filters, 144
Fiber-Fed Multi-Object Spectrographs, 200
Field curvature, 37, 41
Field of View (FOV), 24
Field stop, 24
Filaments, 187
Filtering, 143
Filters, 15–17
Filter transformations, 20
Finder charts, 104
First contact, 193
First light, 103
First point of Aries, 57, 59
FIT liberator, 136
FITS header, 148
FITS Liberator, 88
Flamsteed catalogue, 66
Flares, 187
Flat field, 79
Flat fielding, 91
Flat field noise, 81
Flat frames, 85, 90
Flexible Image Transport System (FITS), 83
FlipMirror, 35
Flux, 13
Flux density, 16
Flux tube, 215
Focal length, 24
Focal reducer, 35
Focusing, 110
Forbidden line, 18
Forward gain, 207
Fourth contact, 193
Free-bound emission, 12
Free electrons, 12
Frequency, 11
Fringes, 87
Full Width Half Maximum (FWHM), 112,
146
Fundamental plane, 54
G
Gaia, 218
Gaia archive, 68
Gain, 79, 97
Galactic centre, 58
Galactic Coordinate System, 58
Galactic pole, 59
Galaxies, 120
Galilean, 25
Galilean eyepiece, 33
Galileo Galilei, 25
Gaussian, 37, 146
Gaussian distribution, 163
General Catalogue of Variable Stars
(GCVS), 71
German equatorial, 29
Gimp, The, 135
Global Positioning System (GPS), 31, 54
Globular clusters, 118
GoTo mounts, 29
GoTo telescopes, 31
Granules, 185
Great circle, 53, 58
Greenwich Mean Time (GMT), 46
Gregorian Calendar, 46, 48
Grism, 198
Guiding, 113
H
H-α, 12
H-α filters, 18
Henry Draper catalogue, 71
Herschel William, 9
Hershel wedges, 189
Hertz Heinrich, 11
Hertzsprung–Russell (HR) diagram, 21
High pass filter, 143
Hipparchus, 14
Hipparcos catalogue, 69
Homing, 110
Hooke Robert, 46
Hot pixel, 136
Hour angle, 58
Hour circle, 58
Hubble Guide Star Catalogue (GSC), 70
Hubble Space Telescope (HST), 28, 39
Huygens Christiaan, 46
Huygens eyepiece, 33
Hydrogen alpha filters, 190
Hydrogen alpha line, 184
Hydrostatic Equilibrium, 183
I
IC Catalogue, 71
Image processing, 136
Image reduction, 135
Impedance, 207
Infrared Science Archive (IRSA), 74
Inline transmission gratings, 200
Instrumental flux, 14
Integral field units, 200
Interferometry, 206