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Question: What is the star flashing in the SW sky?

I am located in Kansas City and it is 11:30 PM July 13, 2012. There are two stars in the southwest portion of the sky at a slight diagonal to each other and the lower star is flashing. I see these two stars nightly but have never noticed the one flashing as it is tonight. Any info would be appreciated. Thanks

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Answer:

Not a star, its an airplane.

The two "stars" low in the southwest at 11:30 p.m. are the planet Saturn (upper) and the star Spica (lower. Here you have a perfect demonstration of the difference between a planet and a star: the planet shines with a steady light, because it has a sizable disk, whereas the star shows twinkling or scintillation because it is a point source. Good observation!

Keep an eye out for the planet Mars approaching these two from the right over the next few weeks.

hovsep m - airplanes move!