A

a trous algorithm 478 aberration 250 aberrations 5 ADU 23,40 afoeal 9 air mass 288

Airy diffraction figure 499 Airy disk 7

angular diameter of 7 all-sky photometry 279, 290, 296 analog-to-digital unit 40, 44 Angstrom, Anders 304 angular 7

angular field of view 26 angular field of view for CCDs 79 angular pixel size for CCDs 79 annulus 274

Anscombe transform 488 anti-blooming gates 21 apparent positions 250 archiving digital information 151 asteroid astrometry 265 astrometric catalogs 249 astrometric position 250 astrometry 221,249 atmospheric extinction 286 atmospheric turbulence 499 AVI 57

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