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Eyes on the Sky
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See what's 'up' in the night sky.
See what's 'up' in the night sky.

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This is the last week to see #Mars larger than 10 arc seconds in diameter - and the phase is down to 86%! It will be almost 20 full months before it's this size again.
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Decent opportunity for North American observers to watch eclipsing variable star Algol in Perseus go from minimum 3. 4 (9:02PM EST / 6:02PM PST) to maximum 2.1 magnitude 5 hours later. Or catch it dipping down in brightness from onset of local twilight to minimum. #stargazing
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The #asteroid 3 Juno is very close to the 4.6 magnitude star 32 Eri on November 11 and 12. Reaching a favorable opposition on November 17, it's easily seen in binoculars at magnitude 7.5
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At a favorable opposition on November 17, here's how to find and see the asteroid 3 Juno with binoculars over the next several weeks.
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Exactly 30 minutes after sunset on Oct 27, look for #Mercury 3 degrees off the horizon, and 3.5 degrees away from #Jupiter in the WSW sky. It will be nearby a day or two later too. Use binoculars to catch the fleet-footed planet!
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Don't allow a full #Moon to keep your telescope inside. Some craters are hidden most phases, but a favorable libration can bring them into view. Check this one out.
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Algol, the "Demon Star" in Perseus, takes ~10 hrs to dip from 2.1 to 3.4 magnitude every 2.86 days due to it's eclipsing variable status. It occurs favorably for North America this evening, at 11:30PM EDT / 8:30PM PDT.
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Bright Moon got your observing down? Don't let it! Get out there and check out some double stars.
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See "what's up" in the upcoming autumn sky for 2018, both in planetary motion changes as well as constellations.
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