December 16, 2014 – What is “light-polluted astronomy”? What’s with that hyphen? And Europa’s shadow!!!

Before I get to the main topic, let me just do a quick recap of my observing session last night.  I went out to take another look at Jupiter, to see both the Great Red Spot, and a transit of Europa.  According to this listing from Sky & Telescope, the Great Red Spot was supposed to be […]

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