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2008 Total Solar Eclipse Tours
Planets
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All Hail, King Jupiter!
July 16, 2008
The King of Planets has made a dramatic entrance into the early evening sky. Don't miss your chance to see it while it's big and bright!
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Mercury, Messenger, and Observers
January 23, 2008
As the first images are released from Messenger's flyby of the innermost planet, previous ground-based observations are proving to be surprisingly accurate.
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Catching the Messenger of the Gods
November 26, 2007
Mercury is a rewarding challenge for planetary astrophotographers, as this amazing image by Massachusetts amateur John Boudreau demonstrates.
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Amateurs are observing this elusive planet more successfully than ever before; try spotting it yourself.
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Viewing the solar system¹s largest planet can be more than fun even with a modest telescope, you can make observations of lasting scientific value.
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With Saturn putting on a fine show this year, you'll want to explore the ringed planet at every opportunity. Here's what to look for.
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Not so long ago, astronomers thought only a few dozen satellites orbited the planets of our solar system. Today the total count tops 160!
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To compare what you see on Mars with a map, you need to know which side of the planet you're looking at. Our handy Mars Profiler tells you that and more, for any date and time.
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Virtually any telescope will show Jupiter's four Galilean satellites and their interesting interactions with the planet or its shadow.
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With help from our interactive JavaScript utility, you can always tell which of Jupiter's four largest satellites is which.
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Now you can calculate the dates and times (local and Universal Times) when the center of the Great Red Spot should cross Jupiter's central meridian, the imaginary line down the center of the planet's disk from pole to pole.
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With help from our interactive JavaScript utility, you can always tell which of Saturn's brightest moons is which.
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Have you seen the two big planets that weren't known in ancient times?
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Our handy JavaScript utility can help users of moderate to large telescopes find Neptune's largest satellite.
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Our handy JavaScript utility can help users of moderate to large telescopes find as many as five Uranus's brightest satellites.
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