MITx This is to certify that CERTIFICATE Issued Feb. 1st, 2013 Alexander Wolf successfully completed 6.00x: Introduction to Computer Science and Programming a course of study offered by MITx, an online learning initiative of The Massachusetts Institute of Technology through edX. ...

. Информация о приемниках . (монтировка в первичном фокусе) . Частота(длина . волны) . Поляризация . Охлаждение . Полуширина . диаграммы . Усиление K/Ян . Tсис (K) . (Tсис Ян) . Ширина Полосы . (ГГц) . 22ГГц(1.3см) . Л & П . нет . 2.3' . 0.06 . 180 . (3800) . 22.16-22.28 . 5ГГц (6см) . Л & П . нет . 12' . 0.06 . 160 . (2600) . 4.76-4.88 . 1.6ГГц(18см) . Л & П . нет . 34' . 0.06 . 105 . (1300) . 1.62-1.68 . 327МГц(92см) . Л & П . нет . 172' . 0.06 . 200 . (2900) .312-.338

... These Facts and Questions pages mainly tell you how to use the Aberrator-interface and also explain the nature of the aberrations. ... Airy disc: the brightest spot of light when you look at a star in focus. This disc can contain a maximum of 84% of all the light that arrives from a star (perfect refractor telescope). MCT : Maksutov-Cassegrain telescope. A closed-tube mirror-telescope with a secondary obstruction. Less common than the SCT, this telescope uses a corrector (real glass). ...