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Home > Classifieds > Astromart Classifieds > Filters > Classified #143729

For Sale: Orion 1.25" Filter--*SOLD*

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This is a 1.25" #80A Medium Blue filter. It is in excellent condition with very minor brassing on the threads from use.

USES:
·Primarily used for enhancing the boundaries of features in the upper atmosphere of Jupiter, such as festoons in the belts and the Great Red Spot;
·very useful during violet clearing on Mars;
·improves the observation of faint dusky features on Mercury at twilight when the planet is near the horizon;
·increases contrast on dark shadings of upper Venusian clouds;
·brings out the best definition of comet gas tails;
·very useful as a lunar filter under dark sky conditions

Will sell for $10 shipped to you. Money order, cash or Paypal ok.

Clear Skies!
Janet



 

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