Friday, March 19, 2004

A gathering of planets

Every few years or so, something wonderful happens: all five naked-eye planets appear in the evening sky at the same time. You can walk outside after dinner, and without any kind of telescope, see Mercury, Venus, Mars, Saturn, and Jupiter.

Now is one of those times....It won't happen again until 2008.

...The show begins on March 22nd at sundown. Find a place where you can see the western horizon, and before the sky fades completely black, start looking for Mercury. It's that bright "star" shining through the rosy glow of the setting Sun. Can't find it? Use the Moon as a guide: On March 22nd Mercury will lie directly below the crescent Moon.

...After sunset on March 24th, look west again. Mercury will be a little higher than it was on March 22nd, and thus easier to find. Trace the same imaginary line upward past Venus and the Moon (a dazzling pair), Mars, Saturn, and behind your back, Jupiter.



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