-----------------------------------

Stille

28 Noi 2018 10:00



-----------------------------------

Tipul de ocular 
http://www.nightskyinfo.com/eyepieces/
R = Ramsden
SR = Symmetric Ramsden
H = Huygens
MA e probabil Modified Achromat ( http://www.swindonstargazers.com/beginners/eyepieces.htm )