Description

PEC-kontroll i EQ-läge

-Fas-korrigerade prismor ger skarpa

Ökar kontrasten på molnränderna på Jupiter och Saturnus

Effekt: 3Watt

tygkontroll

Meteors and How to Observe Them Size:EN STL PEC-kontroll i EQ-lägeTitel: Meteors and How to Observe Them Frfattare: Robert Lunsford Sprk: Engelska Utgiven: 2009 Format: Hftad ISBN: 9780387094601 Meteors and How to Observe Them Explains what meteors and meteroids are Provides necessary expertise in observing meteors Enables the observer to plan meteor shower expeditions well into the future Enables observers to produce scientifically useful data Provides contacts with other individuals and groups devoted to viewing

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