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Location: Houston, Texas, United States

The following ISS sightings are possible from Friday Feb 16, 2018 through Sunday Mar 4, 2018

Date Visible Max Height Appears Disappears Share Event
Fri Feb 16, 7:10 PM < 1 min 10° 10° above SW 10° above SW  
Fri Feb 23, 6:29 AM 3 min 41° 10° above SSW 40° above ESE  
Sat Feb 24, 5:38 AM 2 min 18° 10° above S 18° above SE  
Sun Feb 25, 6:21 AM 6 min 55° 10° above SW 10° above NE  
Mon Feb 26, 5:30 AM 4 min 58° 29° above SSW 11° above NE  
Tue Feb 27, 4:41 AM < 1 min 17° 17° above E 17° above E  
Tue Feb 27, 6:14 AM 4 min 20° 12° above W 11° above N  
Wed Feb 28, 5:24 AM 2 min 36° 36° above NNW 11° above NNE  
Fri Mar 2, 5:18 AM < 1 min 11° 11° above N 10° above N  
2018-02-17 01:10:00.0,Fri Feb 16, 7:10 PM,< 1 min,10°,10° above SW,10° above SW|2018-02-23 12:29:00.0,Fri Feb 23, 6:29 AM,3 min,41°,10° above SSW,40° above ESE|2018-02-24 11:38:00.0,Sat Feb 24, 5:38 AM,2 min,18°,10° above S,18° above SE|2018-02-25 12:21:00.0,Sun Feb 25, 6:21 AM,6 min,55°,10° above SW,10° above NE|2018-02-26 11:30:00.0,Mon Feb 26, 5:30 AM,4 min,58°,29° above SSW,11° above NE|2018-02-27 10:41:00.0,Tue Feb 27, 4:41 AM,< 1 min,17°,17° above E,17° above E|2018-02-27 12:14:00.0,Tue Feb 27, 6:14 AM,4 min,20°,12° above W,11° above N|2018-02-28 11:24:00.0,Wed Feb 28, 5:24 AM,2 min,36°,36° above NNW,11° above NNE|2018-03-02 11:18:00.0,Fri Mar 2, 5:18 AM,< 1 min,11°,11° above N,10° above N|

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The space station looks like an airplane or a very bright star moving across the sky, except it doesn’t have flashing lights or change direction. It will also be moving considerably faster than a typical airplane (airplanes generally fly at about 600 miles per hour; the space station flies at 17,500 miles per hour).

Below is a time-lapse photo of the space station moving across the sky.

The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls

Visit the NASA Johnson Flickr Photostream

How do I Spot The Station?

What does all this sighting information mean?

Time is when the sighting opportunity will begin in your local time zone. All sightings will occur within a few hours before or after sunrise or sunset. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky.

Visible is the maximum time period the space station is visible before crossing back below the horizon.

Max Height is measured in degrees (also known as elevation). It represents the height of the space station from the horizon in the night sky. The horizon is at zero degrees, and directly overhead is ninety degrees. If you hold your fist at arm’s length and place your fist resting on the horizon, the top will be about 10 degrees.

Appears is the location in the sky where the station will be visible first. This value, like maximum height, also is measured in degrees from the horizon. The letters represent compass directions -- N is north, WNW is west by northwest, and so on.

Disappears represents where in the night sky the International Space Station will leave your field of view.

Astronomical Horizon