If you're in North Alabama this weekend, chances are you'll see the International Space Station fly over the Huntsville area. The station is the third brightest object in the sky and easy to spot if you know where and when to look.
Overpass heights are given in degrees above the horizon. The horizon is zero degrees and the direct overhead is 90 degrees. Halfway between ground and sky, it's 45 degrees and so on. For more tips, visit NASA's Spot The Station page.
– Friday, 9:15 pm: visible for 6 minutes. Maximum altitude 88 degrees, appears 1
– Friday, 22:56. Visible for less than a minute. Maximum elevation 11 degrees, appears 11 degrees above north, disappears 11 degrees above north.
– Saturday 3:47 Visible for 5 minutes, maximum altitude 22 degrees, appears 11 degrees above sea level, disappears 11 degrees above E.  – Saturday, 8:25 pm visible for 6 minutes, maximum altitude 39 degrees, appears 10 degrees above SSW, disappears 10 degrees above ENE
– 22:02 clock visible for 5 minutes, maximum altitude of 18 degrees, appears 10 degrees above WNW, disappears 10 degrees above NNE.