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Sky @ Night tonight


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I was horrified when Pete was explaining the different ways to observe the transit (and the Sun in general). I know he had a solar filter on the scope at one stage and then he went on to explain the projection method. He put a piece of plastic behind the EP and in front of the projection screen and it melted. I was like: "how the hell did that melt if there was a solar filter on the scope?".

It took a few mins before i cottoned on that when using the projection method, you dont use a solar filter on the scope. You use one when you are actually observing through the scope.


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