... nebula itself and the surrounding dark-sky environment: objects such as the Orion ... as the Ring Nebula (M57), the Dumbbell Nebula (M27), and the Saturn Nebula (NGC7009 ...
... If the reflection of the diagonal mirror is not centered within the reflection of ... g Reflection of secondary mirror (darkened due to Primary mirror clips Reflection of ...
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Ссылки http://www.meade.com/downloads/manuals/lightbridge/lightbridge.pdf -- 1196.7 Кб -- 09.04.2012 Похожие документы