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Web Extra: Sky Guide 2018

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It’s hard to imagine that the observing highlights of 2018 can compare with this year’s spectacular array of events, at least not when you have the August 21 total solar eclipse tipping the scales in 2017’s favor. But don’t despair — 2018 will offer its own rewards.

The top event for most observers will be their finest views of Mars in 15 years. When the Red Planet reaches opposition the night of July 26/27, it will shine at magnitude –2.8 and appear 24.3" across when viewed through a telescope. Both marks are the best since its historic close approach in August 2003.

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